Sum Of Series

JEE Plances JEE (Main) Maths Sequences and Series

This is my question

JEE Plances JEE (Main) Maths Sequences and Series

Marked question

CBSE XI Science Maths Sequences and Series

Please give me the compete solution of the above.

JEE Plances JEE (Main) Maths Sequences and Series

ques 3 , 7 and 11

JEE Plances JEE (Main) Maths Sequences and Series

quez 4 , 7 and 11

JEE Plances JEE (Main) Maths Sequences and Series

Circled one ques

Gujarat Old X Maths Arithmetic Progression

Find the sum of first 30 positive integer multiple of 6

CBSE XI Science Maths Complex Numbers and Quadratic Equations

The question is attached above

CBSE XI Science Maths Sequences and Series

I an A.P. if S1 = T1 + T2 + T3 + T4 + ...........+ Tn ( nis odd ) and S2 = T2 + T4 + T6 + .... + T(n-1),   then find the value of s1/S2 in terms of n.

CBSE XI Science Maths Sequences and Series

Prove that the sum of n numbers of terms of two different AP's can be same for only one value of n.

JEE Plances ALL Class Maths Sequences and Series

ques 28

CBSE XI Science Maths Permutations and Combinations

question is attached. Please send step by step complete solution.

CBSE XI Science Maths Permutations and Combinations

question is attached. Please send step by step complete solution.

ICSE X Maths Arithmetic Progression

If the sum of first n terms of AP is 6n-n^2 find its 25th term

ICSE X Maths Geometric Progression

26th sum

CBSE XI Science Maths Sequences and Series

Please teach me the method to solve it:

ICSE X Maths Geometric Progression

Show that the ration of sum of first n terms of a GP tto sum of terms from (n+1)th term to 2n th term is 1/r^n

CBSE X Maths Arithmetic Progression

If the sum of first 13 terms of an A.P.,  is 21 and the sum of first 21 terms is 13 . Show that sum of first 34 terms is -34. 

ICSE X Maths Arithmetic Progression

If sum of m terms of an AP is n and sum of n terms of an AP is m, show that the sum of (m+n) terms of the AP is -(m+n)

ICSE X Maths Arithmetic Progression

If the sum of n terms of an AP is 3n^2+2n, find its r^th term.

CBSE XI Commerce Maths

Question no. 14

CBSE X Maths

plz explain i cant get it A ladder has rungs 25 cm apart. (see Fig. 5.7). The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top. If the top and the bottom rungs are 1 2 2 m apart, what is the length of the wood required for the rungs? [Hint : Number of rungs = 250 25 ]

CBSE XII Science Maths Matrices

Matrix

JEE Plances JEE (Main) Maths Sequences and Series

1.3.2^2+2.4.3^2+3.5.4^2+....=?

CBSE XI Science Maths Sequences and Series

Plz solve

CBSE XI Science Maths Sequences and Series

6th sum

CBSE XI Science Maths Sequences and Series

8th sum

CBSE XI Science Maths Sequences and Series

20th sum

CBSE XI Science Maths

5th sum

CBSE X Maths

Please solve this question 

CBSE X Maths

Please solve this question 

JEE Plances JEE (Main) Maths

Please solve this

CBSE X Maths

A long a road lies an odd number of stones placed at intervals of 10 m.  These stones have to be assembled around the middle stone. A person can carry only one stone at a time. A man carried the job with one of the end stones by carrying them in succession. In carrying all the stones he covered a distance of 3 km. Find the number of stones. 

CBSE X Maths

Please answer this question 

CBSE X Maths

Please solve this question 

CBSE XI Science Maths

25th sum

ICSE X Maths Geometric Progression

The sum of the first three terms of a G.p is 13/12 and their product is -1.Find the G.p?

JEE Plances JEE (Main) Maths

please solve the encircled qn

JEE Plances JEE (Main) Maths

please solve encircled qns

CBSE XI Science Maths Sequences and Series

PLEASE HELP

CBSE X Maths Arithmetic Progression

The sum of three no.s in an AP=-6 andtheir product is 64, find the no.s

ICSE X Maths

how to find the no. of months in banking

ICSE X Maths Geometric Progression

in a gp find the tenth term and the sum of first seven terms of 1/2, 1/3, 2/9...

CBSE XI Science Maths

Q.1Prove that log 2<1

Q.1  Sum of series 1/1.3+1/2.5+1/3.7+1/4.9+.......till infinity. Q.2  Sum of series 5/1.2.3+7/3.4.5+9/5.6.7...till infinity 

CBSE XI Science Maths

Q1. Sum of the series  1/1.2.3+5/3.4.5+9/5.6.7+.......till infinity Q2. Find value of  Log(1+1/n)^n 

CBSE XI Commerce Maths

If sk=1+2+3+....k÷k.Find the value of s1^2+s2^2+s3^2+....sk^2

CBSE XI Science Maths

Please answer this question.

CBSE XI Science Maths

What is the answer for this question?

JEE Plances JEE (Main) Maths

Detailed solution for this.

Gujarat X Maths

(-100)+(-98)+(-96)+......+92

JEE Main Maths Sequences and Series

Sir pls solve the following.

Gujarat X Maths

Find the sum of all three digit natural numbers divisible by 3

CBSE XII Science Maths

Question written in the image .

CBSE XI Science Maths Sequences and Series.

Kindly answer.

CBSE X Maths

The sum of the series 1+(1+3)+(1+3+5)+....+(1+3+5+....+15+17)

JEE Main Maths

Solve the question in photo showing each step clearly...

CBSE XII Science Maths

  find the sum of the following series: S = 7/6 + 13/12 + 21/20 +31/30 +............. + 9901/9900 A) 9749/100 B) 9849/100 C) 9949/100 D) 9649/100

JEE Main Maths Sequences and Series

Find the sum of n^th term of an series whose n^th term is given by n^2 (n^2-1).

CBSE X Maths Arithmetic Progression

how many terms of the AP  9,17,25...... must be taken to give a sum of 636

CBSE X Maths Arithmetic Progression

In an ap first term is 2,the sum of first 5terms is1/4 of the sum of next 5terms .find sum of first 20terms

CBSE X Maths Arithmetic Progression

A sum of RS 700 is to be used to give seven cash prizes to students of school for their overall academic performance. If each prize is RS 20 less then its preceding prize, find the value of each of the prizes.   From A.P.

JEE Main Maths Sequences and Series

Sir solve this problem 

CBSE X Maths Arithmetic Progression

Please answer

CBSE X Maths Arithmetic Progression

In an arithmetic sequence of common difference 3,out of first 25terms sum of first 13 terms is equal to sum of next 12 terms what is the difference between first term and 14 th term? What is the difference between 12th and 25th term?

ICSE X Maths Arithmetic Progression

If the ratio of the sum of two A.P is 5n+4:9n+6,then the ratio of the 18th term of those A.P is=?

CBSE X Maths Arithmetic Progression

If the sum of n terms of an AP is 2n 2 +5n, then its nth term is

CBSE X Maths Arithmetic Progression

If the sum of the first m term of an ap is n and the sum of the n term is m then find the sum of first m+n term  

CBSE X Maths Arithmetic Progression

if the m term of an A.P is 1/n and n term of an A.P is 1/m prove that sum of the (mn) first term is 1/2(mn+1)      

CBSE XI Science Maths Sequences and Series

Sum of term: 1^3+3^3+5^3+7^3....

CBSE X Maths

It is known that 81 / 1 square + 1/2 square + 1 / 3 square +.......n =             π square/6 Then find the value of the series 1/       1 square + 1 / 3 square + 1 / 5 square +.......n

CBSE XII Science Maths

The first and last terms of an A.P. are a and b. There are altogether (2n + 1) terms. A new series is formed by multiplying each of the first 2n terms by the next term. Find the sum of new series

CBSE XII Science Maths

 If Sn  represents the sum to n terms of a GP whose first term & common ratio are a & r resp then find the  value of S1 + S3 + S5 + ..... + S2n-1 

CBSE XI Science Maths Sequences and Series

Sum the series to n terms  1.2.4+2.3.7+3.4.10+...

CBSE X Maths Arithmetic Progression

If the sum of first four terms of an AP is 40 and that first 14 terms is 280 .Find the sum of its first n terms   

ICSE X Maths Geometric Progression

please solve this question.

ICSE X Maths Arithmetic Progression

determine the sum of all natural numbers between 2 and 100 which are exactly divisible by 3

ICSE X Maths Arithmetic Progression

if the sum of P terms of an arithmetic progression is equal to some of its Q terms. prove that the sum if(P+Q) terms of it is equal to zero

CBSE X Maths Arithmetic Progression

0.6,1.7,2.8........to100term

JEE Main Maths Sequences and Series

(x-1)/(x+1) + (1/2)(x^2-1)/(x+1)^2 + (1/3)(x^3-1)/(x+1)^3+ ...  infinity

JEE Main Maths Trigonometry

applied mathematics

CBSE X Maths Arithmetic Progression

if in an A.P. the sum of m terms equal to n and the sum of n terms is equal to m, then prove that the sum of (m+n) terms is -(m+n)

CBSE XI Science Maths Sequences and Series

1•4•7+2•5•8+3•6•9+....... find sn

JEE Main Maths Sequences and Series

23. For which positive integers n is the ratio, sum k = 1 to n k ^ 2 an integer? sum k = 1 k (A) odd n only (B) even n only

ICSE X Maths Arithmetic Progression

please tell the final answer

CBSE X Maths Arithmetic Progression

If the pth term of an AP is 1/q and qth term 1/P. Prove that the sum of the first pqth term is 1/2 (pq + 1).