we are supposed to answer only first question
1. Evaluate: sin A-csc-A + cos²A - sec A + cot A+ tan-A 2. You decide...
On the back, prove the identity: tan^3(x)csc^2(x)cot^2(x)cos(x)sin(x)=1 Use only the left side and try changing everything to sine and cosine. Original Question Image: On the back, prove the identity: tan'(r)csc(r)cot'(x)cos(x)sin(r)-1 Use only the left side and try changing everything to sine and cosine.