Math, asked by srestigohain, 4 months ago

Cos 50° - Cos 30 help me

Answers

Answered by mathdude500

1

Answer:

$- 2sin( \frac{50 + 30}{2} )sin( \frac{50 - 30}{2} ) \\ = - 2 \: sin40 \: sin10$

Answered by suman8615

0

Answer:

$- 2 \sin + 40 \sin+ 10$

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