Sin155° = _____ sin25° sin(-25)° -sin25°

asked Sep 1, 2021 35.4k views

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3 votes

Answer:

sin 25

Explanation:

sin(A − B) = sinA cosB − cosA sinB

sin 155

sin( 180 -25)

A = 180 B = 25

sin180 cos25 − cos180 sin25

Sin 180 = 0

cos 180 = -1

0 - (-1) sin 25

sin 25

Kibet Yegon answered Sep 5, 2021

5.1k points

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