Question

Evaluate sin theta into cos theta + sin theta into cos theta into cos theta / sec 90 degree minus theta + cos theta into sin 90 degree minus theta into sin theta divided by cos x 90 degree minus theta minus to 90 degree minus theta cos 90 degree minus theta

Answer 1

Answer:

Step-by-step explanation:

Cos∅ cos ( 90 - ∅ ) - sin∅ sin ( 90 - ∅ )

=> Sin∅ = cos ( 90 - ∅ )

=> Cos∅ = sin ( 90 - ∅ )

Cos∅ Sin∅ - Sin∅ Cos∅

= 0