Question

pl sove 1 part or 2 part





urgently

Answer 1

1. ⇒ 1 + cot^2θ = cosec^2θ

4x^2 - 4/x^2 = 1

2(x^2 - 1/x^2) = 1/2

Answer 2

Hey, mate here is ur Ans
$\csc( \alpha ) = 2x \: and \: \cot( \alpha ) = 2 \div x \\ \sin( \alpha ) = 1 \div 2x \: \: \: \: \: ( \csc( \alpha ) = 1 \div \sin( \alpha ) ) \\ = > \cos( \alpha ) \div \sin( \alpha ) = 2 \div x \\ = > \cos( \alpha ) \div (1 \div 2x) = 2 \div x \\ = > x {}^{2} = 1 \div \cos( \alpha ) \\ = > 2(1 \div \cos {}^{2} ( \alpha ) - \cos {}^{2} ( \alpha ) )$