Math, asked by dan61, 7 months ago

If cos 25° – sin 25º = K , then cos 50º is equal to

Answers

Answered by Snapskg730

1

Answer:

cos 50º

cos(180⁰-30⁰)

cos(-30)

-cos30⁰

$- \frac{ \sqrt{3} }{2}$

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