FRANK Solutions for Class 9 Maths Chapter 10 - Logarithms

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Chapter 10 - Logarithms Exercise Ex. 10.1

Question 1
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 1
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 2
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 2
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 3
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 3
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 4
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 4
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 5
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 5
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 6
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 6
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 7
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 7
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 8
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 8
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 9
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 9
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Question 10
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms
Solution 10
Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Chapter 10 - Logarithms Exercise Ex. 10.2

Question 1

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

  (vi) log 128

Solution 1

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

(vi)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 2

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

(vi) log 250

Solution 2

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

(vi)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 3

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

   (vi)

         Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 3

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

(vi)

        Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 4

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 4

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 5

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 5

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 6

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 6

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 7

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

  (viii) Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 7

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

 (viii)

       Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 8

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 8

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 9

Express log103 + 1 in terms of log10x.

Solution 9

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 10(a)

State, true of false:

log (x + y) = log xy

Solution 10(a)

False, since log xy = logx + logy

Question 10(b)

State, true of false:

log 4 x log 1 = 0

Solution 10(b)

True, since log 1= 0 and anything multiplied by 0 is 0.

Question 10(c)

State, true of false:

logba =-logab

Solution 10(c)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 10(d)

 State, true of false:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 10(d)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 11(a)

If log 16 = a, log 9 = b and log 5 = c, evaluate the following in terms of a, b, c:

log 12

Solution 11(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 11(b)

If log 16 = a, log 9 = b and log 5 = c, evaluate the following in terms of a, b, c:

log 75

Solution 11(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 11(c)

If log 16 = a, log 9 = b and log 5 = c, evaluate the following in terms of a, b, c:

log 720

Solution 11(c)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 11(d)

If log 16 = a, log 9 = b and log 5 = c, evaluate the following in terms of a, b, c:

log 2.25

Solution 11(d)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 11(e)

If log 16 = a, log 9 = b and log 5 = c, evaluate the following in terms of a, b, c:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 11(e)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 12

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 12

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 13

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 13

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 14

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 14

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 15

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 15

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 16

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 16

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 17(a)

If 2 log x + 1 = 40, find: x

Solution 17(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 17(b)

If 2 log x + 1 = 40, find: log 5x

Solution 17(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 18(a)

If log1025 = x and log1027 = y; evaluate without using logarithmic tables, in terms of x and y:

log105

Solution 18(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 18(b)

If log1025 = x and log1027 = y; evaluate without using logarithmic tables, in terms of x and y:

log103

Solution 18(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 19

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 19

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 20

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 20

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 21

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 21

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 22

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 22

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 23

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 23

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 24

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 24

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 25

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 25

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 26

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 26

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 27

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 27

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 28

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 28

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 29

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 29

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 30

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 30

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 31(a)

Simplify:

log a2 + log a-1

Solution 31(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 31(b)

Simplify:

log b ÷ log b2

Solution 31(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 32(a)

Find the value of:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 32(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 32(b)

Find the value of:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 32(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 32(c)

Find the value of:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 32(c)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 33

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 33

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 34

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 34

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 35

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 35

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 36

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 36

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 37

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 37

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 38

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 38

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 39

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 39

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 40

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 40

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 41(a)

Prove that:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 41(a)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 41(b)

Prove that:

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Solution 41(b)

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 42

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms 

Solution 42

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms

Question 43

If a = log 20 b = log 25 and 2 log (p - 4) = 2a - b, find the value of 'p'.

Solution 43

Frank Solutions Icse Class 9 Mathematics Chapter - Logarithms