Rewrite 2cos 75 sin 75 using a double angle identity

asked Jan 1, 2020 115k views

1 vote

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5 votes

Answer:

sin150°

Explanation:

Using the double angle formula

sin2x = 2 sinxcosx

Given

2sin75°cos75°, using the double angle formula

2sin75°cos75° = sin(2 × 75)° = sin150°

Anda answered Jan 4, 2020

by Anda

5.8k points

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