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Solve 2 cos ^(2) x+3 sin x=0...

Solve `2 cos ^(2) x+3 sin x=0`

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V PUBLICATION-TRIGNOMETRC FUNCTIONS-QUESTION BANK
  1. Solve tan 2 x=-cot (x+(pi)/(3))

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  2. Solve: sin 2x-sin 4x+sin 6x =0

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  3. Solve 2 cos ^(2) x+3 sin x=0

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  4. Find the principle and general solution of the following. tan x = s...

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  5. Find the principal and general solutions of the following equations s...

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  6. Find the principal and general solutions of the following equations ...

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  7. Find the principle and general solution of the following. cosec x =...

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  8. Find the general solution of the following equations cos 4x = cos 2x

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  9. Find the general solution of the following equations cos 3x+cos x-co...

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  10. Find the general solution of the following equations sin 2x+ cos x =...

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  11. Find the general solutions for each of the following equations sec^2 2...

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  12. Find the principal and general solution of the following equation sin ...

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  13. If sin x=(3)/(5), cos y=-(12)/(13), where 'x' and 'y' both lie in seco...

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  14. Prove that cos 2 x cos (x/2)-cos 3 x cos ((9x)/2)=sin 5 x sin ((5 x)/...

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  15. Find the value of tan (pi/8)

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  16. If tan x^(circ)=(3)/(4), piltxlt(3 pi)/(2), find the value of sin (x)...

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  17. Show that cos ^(2) x+cos ^(2)(x+(pi)/(3))+cos ^(2) (x-(pi)/(3))=(3)/(2...

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  18. Prove that 2cos(pi/13)cos((9pi)/13)+cos((3pi)/13)+cos((5pi)/13)=0

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  19. Prove that (sin 3 x+sin x) sin x+(cos 3 x-cos x)cosx=0

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  20. Prove that (cosx+cosy)^2+(sinx-siny)^2=4cos^2((x+y)/2)

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