Question

Express each of following in terms of t ratios of angles lying between 0° and 45°
(a) cot 85° + cos 75°​

Answer 1

Answer:

Tan 5° + Sin 15°

Hope it helps you!

please mark it brainliest! please...

Answer 2

Hey there!

Given,

cot 85° + cos 75°

= cot ( 90° - 5°) + cos( 90 - 15°)

= tan 5° + sin 15°

Formulas used:

• cot ( 90° - Ф)  = tan Ф

• cos ( 90 - Ф ) = sin Ф