Question

1/√9-√8 is equal to
i) 1/2(3-2√2)
ii)1/3+2√2
iii)3-2√2
IV)3+2√2​

Answer 1

Answer:

iv)3+2√2

Step-by-step explanation:

after rationalization of 1/√9-√8,

multiply √9+√8 both in numerator as well as denominator,we get

(√9+√8)/(9-8) { in denominator we use a²-b²=(a-b)(a+b) therefore it becomes 9-8}

so 1/(√9-√8)=√9+√8

=3+2√2