Math, asked by mukul1185, 17 days ago

cos( -x) formula

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Answers

Answered by devanayan2005

0

Answer:

1 + Sin²x

Step-by-step explanation:

Cos (-x) = 1 + Sin²x

Answered by suddu150903

0

Answer:

sin^2x + cos^2x = 1

therefore, -cosx = root of sin^2x - 1

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