Question

Solve this High order thinking skills (HOTS) trigonometry sum. Pic attached.

Answer 1

Answer:

sorry I didn't know that

Answer 2

Answer:

Step-by-step explanation:

Given that, sin 3A = cos (A-26°)....(1)

Since, sin 3A = cos (90° - 3A), we can write (1) as:

cos(90°- 3A)= cos (A-26°)

Since, 90°-3A = A - 26°

herefore,

0° +26° = 3A + A

A = 116°

A = 116° / 4 = 29°

Therefore, the value of A is 29⁰.