a)cos4x-sin4xcot2x=-1
b)1+sinx+cosx/1+sinx-cosx=cot(x/2)
i tried to ask my teacher but she doesnt know please help me!
1 answer
Anyone help!!!!!
b)1+sinx+cosx/1+sinx-cosx=cot(x/2)
i tried to ask my teacher but she doesnt know please help me!
1 answer