Question

22, If x=7-405 and the value of
√x+1/√x

(1) 0
(2) 1
(3) 4​

Answer 1

Step-by-step explanation:

Concept : Rationlize each term inividually and then bring LHS equal to RHS.

In the last step, we get

\begin{gathered}0 + \frac{7 \sqrt{5} }{11} = a + \frac{7 \sqrt{5} }{11} b \\\end{gathered}

0+ 1175

=a+ 1175b

As value of a was nothing so "0'. And value of b is 1 because then we get the same value.

\boxed{ \textsf{ \red{ = > a=0\:and\:b=1 }}}

= > a=0andb=1