Question

The value of [cosec (75° + 0)- sec (15° -0) -
tan (55° + ) + cot (35° - O)] is​

Answer 1

Answer:

If cot A =12/5, the adjacent side is 12 and the opposite side is 5. The hypotenuse is 13.

cos A = 12/13 and sin A = 5/12

cos 2A = cos^2 A - sin^2 A = (144/169)-(25/169) = 119/169.

Answer 2

Answer:

0 is the answer to the question