Question

if 10 theta = 1/ root 7
show that cosec ² theta - sec ²theta
upon cosec²theta + sec²theta =3/4​

Answer 1

Refer the given attachment

Answer 2

$\bold \green{ \frac{3}{4} \: \: is \: \: the \: \: correct \: \: answer.}$

Best explaination is in the figure.