Question

sin(90+a)+cot(270-a)-cos(180+a)=tana

Answer 1

Step-by-step explanation:

I will not be explaining the whole process.

But I can help you.

Below are 2 images that can guide you.

Please learn them and then try to solve the sum and get the answer.

If you have any doubts pls contact me.

Hope it helps.

Mark ands brainiest.