Question

SUB
Class IXTS.
(TS
DIST
Name of the Student:
1) Answer the following
1. Rationalise the numerator of
$\sqrt{1 + b - 1 \div b}$
​

Answer 1

==> √ ( 1 + b -( 1/ b)) = √1 + √b - √(1/b)

= 1 + √b - (1 / √b)

= (b + √b - 1 ) / √b

= (b √b + b - √b) / b

= ( √b [ b -1] + b ) / b