If is so small that
and higher powers of
may be neglected, then
may be approximated as
As we learnt in
Binomial Theorem for Rational index -
- wherein
use
On approximation
Correct option is 4.
Option 1)
This is an incorrect option.
Option 2)
This is an incorrect option.
Option 3)
This is an incorrect option.
Option 4)
This is the correct option.
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