Math, asked by ramadevi71980, 8 months ago

the value of cos alpha

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Answered by bhavana17203

0

Sorry there is no question......

Answered by Anonymous

1

Answer:

cos(alpha)= (9^2+6^2–15^2)/(2×9×6). Thus, cos(alpha)=-2/27. PS refer the cosine rule from the internet.

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