Question

solve it plzzzzzzzzz with steps​

Answer 1

Step-by-step explanation:

${ \sin(2a) }^{2} = 1 - { \cos(a) }^{2} \\ 4 { \sin(a) }^{2} { \cos(a) }^{2} = 1 - { \cos(a) }^{2} \\ 4 = { \tan(a) }^{2} { \csc( a ) }^{2}$

$now \: put \: values \: of \: angles \: and \: get \: your \: answer$