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If tan theta + tan 2theta = tan 3theta, ...

If `tan theta + tan 2theta = tan 3theta`, then `theta =`

A

`n pi, n pi pm pi//3`

B

`npi/,npi//3

C

`n pi//3, npi//4`

D

`n pi//3, n pi//5`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC EQUATIONS -EXERCISE 1
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  3. If tan theta + tan 2theta = tan 3theta, then theta =

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  4. If tan theta + tan (pi//3+theta)-tan(pi//3-theta)=3 then theta =

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  5. The solution of sin 2 theta + cos 2theta + sin theta + cos theta + 1 =...

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  6. If cos 3x + cos 2x = sin (3x//2)+sin(x//2), 0 le x le 2pi, then x =

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  7. The solution set of sin 2theta - cos 2theta - sin theta + cos theta = ...

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  8. If sin x - 3 sin 2x + sin 3x = cos x - 3 cos 2x + cos 3x then x =

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  9. If sin[(pi)/(4)cot theta]=cos[(pi)/(4)tan theta] then theta =

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  10. If tan((pi)/(2) sin theta)=cot((pi)/(2)cos theta) then sin(theta +(pi)...

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  11. If tan(picostheta)=cot(pisintheta), then prove that cos(theta-(pi)/(4...

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  15. The solutions of the system of equations x+y=2pi//3 and cos x + cos y ...

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  16. If x + y = 2pi//3 and cos x + cos y = sqrt(3)//2, then x, y =

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  18. The smallest positive values of x and y which satisfy tan (x-y)=1, sec...

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