Question

cot squareA*sin squareA= cos squareA

Answer 1

Answer:

Cos²A

Step-by-step explanation:

$\cot {}^{2} (a) \times \sin {}^{2} (a) = \cos {}^{2} (a)$

$\cot {}^{2} (a) \: can \: be \: written \: as \: \frac{ \cos {}^{2} (a) }{ \sin {}^{2} (a) }$

$= \frac{ \cos {}^{2} (a) }{ \sin {}^{2} (a) } \times \sin {}^{2} (a)$

Then Sin²A will be cancelled

So,

=Cos²A