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In A B C , prove that cosA+cosB+cosClt=3...

In `A B C` , prove that `cosA+cosB+cosClt=3/2dot`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. Number of values of p for which equation sin^3x+1+p^3-3 p sinx=0 (p >0...

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  3. In A B C , prove that cosA+cosB+cosClt=3/2dot

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