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If cos 5 alpha=cos^5 alpha, where alpha ...

If `cos 5 alpha=cos^5 alpha,` where `alpha in (0,pi/2)` then find the possible values of `(sec^2 alpha+cosec^2 alpha+cot^2 alpha).`

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ARIHANT MATHS-TRIGONOMETRIC FUNCTIONS AND IDENTITIES-Exercise (Single Integer Answer Type Questions)
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  3. The value of "cosec"10^(@)+"cosec"50^(@)-"cosec"70^(@) is

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  4. If cos 5 alpha=cos^5 alpha, where alpha in (0,pi/2) then find the poss...

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  5. tan^2 ((pi)/16) + tan^2 ((2pi)/16) + tan^2((3pi)/16).........+tan^2((7...

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  7. In DeltaABC, if (sinA)/(3)=(cosB)/(3)=(tanC)/(2), then the value of ...

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  9. If sum of the series 1+x log(|(1-sinx)/(cos x)|)((1+sin x)/(cos x))^(1...

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  10. If 9x/costheta+5y/sintheta=56 and 9xsintheta/cos^2theta-5ycostheta/sin...

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  11. The angle A of the DeltaABC is obtuse. x = 2635 - tan B tan C, if [x]...

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  15. If A+B+C=180^(@), (sin 2A+sin 2B+sin2C)/(sinA+sinB+sinC)=k sin. (A)/(2...

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  16. The value of p(x) = 5x -4x^2 + 3 for x = 1 is :

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  17. In any DeltaABC, then minimum value of 2020sum (sqrt((sinA)))/((sqr...

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  18. If sintheta+sin^2theta+sin^3theta=1, then prove that cos^6theta-4cos^4...

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  19. 16(costheta-cos(pi/8))(costheta-cos((3pi)/8))(costheta-cos((5pi)/8))(c...

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  20. If (1)/(sin20^(@)) + (1)/(sqrt(3)cos20^(@)) = 2kcos40^(@), then 18k^(4...

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