Solution:
Let’s say,
To find:
It is known that,
for
As,
In numerator and denominator multiply by , we have,
Using the formula of T-ratios of multiple angles-
When we rationalize the term, we have,
As a result,
Solution:
Let’s say,
To find:
It is known that,
for
As,
In numerator and denominator multiply by , we have,
Using the formula of T-ratios of multiple angles-
When we rationalize the term, we have,
As a result,