Question

cos A
sin A
+
sin A + cos A
1-tan A
1-cot A​

Answer 1

Answer:

Step-by-step explanation:

I don't know

Answer 2

Answer:

We want to prove that: cosA1−tanA+sinA1−cotA≡ cosA+sinA. If we manipulate the LHS we have: LHS =cosA1−tanA+sinA1−cotA.