Write the expression as a sine or cosine of angle sin pi/5 cos pi/2 + sin pi/2 cos pi/5

asked Mar 7, 2023 186k views

21 votes

5.6k points

Please log in or register to add a comment.

3 votes

Answer:

(cos(π) sin(π))/(2 5) + (cos(π) sin(π))/(5 2) = 1/5 cosh(i π) cos(-π/2)

Explanation:

Rysv answered Mar 10, 2023

by Rysv

6.1k points

5 votes

Answer:

sin 7π/10

Explanation:

Amenoire answered Mar 13, 2023

5.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.5m questions

8.6m answers