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The set of values of x satisfying the eq...

The set of values of `x` satisfying the equation `sin3alpha=4sinalphasin(x+alpha)sin(x-alpha)` is (a) `npi+-pi/4,AAn in Z` (b) `npi+-pi/3,AAn in Z` (c) `npi+-pi/9,AAn in Z` (d) `npi+-pi/(12),AAn in Z`

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
  1. If 3sintheta+5costheta=5, then show that 5sintheta-3costheta=+-3.

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  2. In A B C , if (sinA)/(csinB)+(sinB)/c+(sinC)/b=c/(a b)+b/(a c)+a/(b c...

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  3. The set of values of x satisfying the equation sin3alpha=4sinalphasin(...

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  4. cos e c(360^0)/7+cos e c(540^0)/7

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  5. If (secA+tanA)(secB+tanB)(secC+tanC)=(secA-tanA)(secB-tanB)(secC-tanC)...

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  6. In a triangle A B C , the altitude from A is not less than B C and the...

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  7. If (3-tan^2(pi/7))/(1-tan^2(pi/7))=kcos(pi/7) then the value of k is...

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  8. If tan(A-B)=1a n dsec(A+B)=2/(sqrt(3)) , then the smallest positive va...

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  9. Prove that sqrt((1+sintheta)/(1-sintheta))=sectheta+tantheta

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  10. If in A B C ,A C is double of A B , then the value of cot(A/2)cot((B-...

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  11. If 3tan(theta-15^0)=tan(theta+15^0), then theta is equal to n in Z)

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  12. Let P(x)=((1-cos2x+sin2x)/(1+cos2x+sin2x))+((1+cotx+cot^2x)/(1+tanx+ta...

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  13. prove that 1/(secA-tanA)-1/(cosA)=1/(cosA)-1/(secA+tanA)

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  14. Number of solution(s) satisfying the equation 1/(sinx)-1/(sin2x)=2/(si...

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  15. If in A B C , side a , b , c are in A.P. then B > 60^0 (b) B<60^0 B...

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  16. The value of sin^3 10^0+sin^3 50^0-sin^3 70^0 is equal to (a)-3/2 ...

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  17. Prove that 2(sin^6theta+cos^6theta)-3(sin^4theta+cos^4theta)+1=0

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  18. If the hypotenuse of a right-angled triangle is four times the length ...

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  19. The number of roots of (1-tantheta)(1+sin2theta)=1+tantheta for theta...

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  20. If cosx=tany ,cosy=tanz ,cosz=tanx , then the value of sinx is (a)2...

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