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If max{5sintheta +3sin(theta -alpha)} = ...

If `max{5sintheta +3sin(theta -alpha)} = 7`, then the set of possible value of `alpha` is `(theta in R)`

A

`2n pi pm pi/3`

B

`2n pi pm (2pi)/3`

C

`[pi/3, (2pi)/3]`

D

none

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The correct Answer is:
A
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ML KHANNA-TRIGONOMETRICAL EQUATIONS -PROBLEM SET (2) (MULTIPICE CHOICE QUESTIONS)
  1. If sqrt3cos theta + sin theta = 1 " for " -2pi lt theta lt 2pi, then t...

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  2. General solution of the equation (sqrt(3) - 1) sin theta + (sqrt(3) ...

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  3. If max{5sintheta +3sin(theta -alpha)} = 7, then the set of possible va...

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  4. If tan((pi)/(2) sin theta )= cot((pi)/(2) cos theta ), then sin thet...

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  5. If : sin ((pi)/4 cdot cot theta) = cos ((pi)/4 cdot tan theta), then :...

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  6. If tan theta + tan (theta + pi/3) + tan ( theta + (2pi)/3) = 3, then ...

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  7. Solve cot(x//2)-cosec (x//2)=cot x.

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  8. If cot theta - tan theta = sec theta, then theta=

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  9. Solve tan theta+tan 2 theta+sqrt(3) tan theta tan 2 theta = sqrt(3).

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  10. Solve sin^3thetacostheta-cos^3thetasintheta=1/4dot

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  11. In a right angled triangle the hypotenuse is 2sqrt(2) times the length...

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  12. In a triangle ABC ,angle A is greater than B.If the measures of angles...

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  13. The values of theta satisfying "sin" 7 theta = "sin" 4 theta -"sin" th...

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  14. If sin theta + sin 3 theta + sin 5theta = 0, 0 le theta le pi//2, then...

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  15. If sin 6 x= sin 4x - sin 2x , then x =

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  16. Solve cos theta+cos 7 theta+cos 3theta+cos 5 theta=0,

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  17. If sin 7 theta + sin 4 theta + sin theta = 0, 0 le theta le pi //2 th...

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  18. If "tan" (pi "cos" theta) = "cot"(pi "sin" theta), then the value(s) ...

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  19. Solve sec 4 theta- sec 2 theta=2.

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  20. If: tan theta + tan 2theta = tan 3theta, then: theta=

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