Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

rationalize the denominater 7+ 3square root of 5  divided by 7-  3square root of 5
Asked by kaushik3199 | 26 May, 2021, 03:45: PM
answered-by-expert Expert Answer
begin mathsize 16px style fraction numerator 7 plus 3 square root of 5 over denominator 7 minus 3 square root of 5 end fraction Rationalizing space the space denominator equals fraction numerator 7 plus 3 square root of 5 over denominator 7 minus 3 square root of 5 end fraction cross times fraction numerator 7 plus 3 square root of 5 over denominator 7 plus 3 square root of 5 end fraction equals fraction numerator open parentheses 7 plus 3 square root of 5 close parentheses open parentheses 7 plus 3 square root of 5 close parentheses over denominator open parentheses 7 minus 3 square root of 5 close parentheses open parentheses 7 plus 3 square root of 5 close parentheses end fraction equals fraction numerator open parentheses 7 plus 3 square root of 5 close parentheses squared over denominator open parentheses 7 close parentheses squared minus open parentheses 3 square root of 5 close parentheses squared end fraction space space space space........ space left parenthesis straight a space minus space straight b right parenthesis left parenthesis straight a space plus space straight b right parenthesis space equals space straight a squared minus space straight b squared equals fraction numerator 49 space plus space 42 square root of 5 space plus space 45 over denominator 49 space minus space 45 end fraction space space space space space space space space space............. space left parenthesis straight a space plus space straight b right parenthesis squared space equals space straight a to the power of 2 end exponent plus 2 ab space plus space straight b squared equals fraction numerator 94 plus space 42 square root of 5 over denominator 4 end fraction equals fraction numerator 2 open parentheses 47 plus 21 square root of 5 close parentheses over denominator 4 end fraction equals fraction numerator 47 plus 21 square root of 5 over denominator 2 end fraction end style
Answered by Yasmeen Khan | 28 May, 2021, 12:09: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Maths
3√5+√3/√5-√3
Asked by gulshanelectronics2017 | 15 Apr, 2024, 05:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
locate √2 on number line
Asked by rathoreraj7296 | 31 Mar, 2024, 08:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Rationalize the denomination of √3+√2 /√3-√2
Asked by gurucharansingh19975 | 23 Feb, 2024, 09:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Which is greater 17½-12½ or 11½-6½
Asked by priyadarshjagarwal | 04 Jun, 2023, 03:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
If sqrt(2) = 1.414 then sqrt(3 + 2sqrt(2)) is equal to
question image
Asked by surenderjangada | 12 Apr, 2023, 04:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
the diameter of moon is approximately one-fourth of the diameter of the earth.what fraction of the volume of the earth is the volume of the moon?
Asked by rajeshporwal02 | 07 Jan, 2023, 07:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
if x =3root 8 and y=3root 8 1upon xsquare
Asked by yadram9728853493 | 25 Jun, 2022, 11:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
what is root 2 multiply root 2
Asked by devenderjuneja7 | 20 Jun, 2022, 02:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
find two irrational numbers between 2/3 and 2.
Asked by jeshikamakwana190 | 04 May, 2022, 10:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
3√12 multiply 6√4
Asked by hsavithri1988 | 27 Oct, 2021, 07:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×