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If (sin^4 theta)/a+ (cos^4 theta)/b= 1/(...

If `(sin^4 theta)/a+ (cos^4 theta)/b= 1/(a+b)`, prove that `(sin^12 theta)/a^5+ (cos^12 theta)/b^5= 1/(a+b)^5` .

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
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  2. If alpha and beta are two real numbers satisfying the equation a cos x...

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