Question

Cosec2A+cosec4A=cotA-cot4A prove it

Answer 1

cosec to A + cos x 4 taking a little then perfect to A + cosec bracket to A + to a then to sec 22 a can be taken into bracket cosec A plus a then formula sign of a + b is equal to sin a cos b + cos a sin b then and cosec 4A we will apply sin cos a cos a + b + cos a cos b + c