Hello mate can fast answer this question
Attachments:

Answers
Answered by
3
Hii its tom85
LHS
1/(sqrt4 + sqrt 5 )+ 1/(sqrt5 + sqrt6) + 1/(sqrt6 + sqrt 7) + 1/( sqrt 7 + sqrt 8) +1/(sqrt 8 sqrt 6)
on rationalising
- 2 + sqrt5 +sqrt 6 - sqrt 5 + sqrt 7 - sqrt6 + sqrt 8 - sqrt 7 + 3 - sqrt 8
3 - 2
1
RHS
Here
factorisation means divide above and below by same number that make denominator 1 .
example
sqrt 5 - 2/(sqrt 5 + sqrt 4)(sqrt 5 - sqrt 4) =sqrt5 - 2
(sqrt 7 - sqrt 6)/(sqrt 7. +sqrt 6)(sqrt 7 - sqrt 6) = sqrt 7 - sqrt 6
like that solved all
concept
(Sqrt a + sqrt b)(sqrt a - sqrtb )=1/(a - b)
_________/\_________☺️
hope it may helps you dude
jatin16861:
you are the best
Similar questions