Question

This one is another trigonometry a wwrite step by step by sending picture.

Answer 1

Answer:

1-sin²0 = cos²0

So,

cos²0/cos²0

1

Answer 2

Question :-

Prove that

$\frac{1 - \sin {}^{2} (x) }{ \cos {}^{2} (x) } = 1$

Solution :-

Take LHS

$\frac{1 - \sin {}^{2} (x) }{ \cos {}^{2} (x) }$

As,

$1 - \sin {}^{2} (x) = \cos {}^{2} (x)$

Hence,

$\frac{ \cos {}^{2}(x ) }{ { \cos {}^{2} (x) }^{} } = 1 \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: 1 = 1$

LHS =RHS - - - (PROVED)