Right Triangle Trigonometry

Question 3 • CREDIT RE-SEAT MNPS Integrated Math III IC S2 26-27

Which identity can you now use to find cos(t)?

Answer

cos(t) = 1 / sec(t)

cot(t) = 1 / tan(t)

tan(t) = sin(t) / cos(t)

The reciprocal identity for cosine is sec(t) = 1 / cos(t). Rearranging gives cos(t) = 1 / sec(t), so choice A directly lets you find cos(t).

AI-written and checked against the verified answer.

Instruction

Evaluating the Six Trigonometric Functions

The Unit Circle