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If sinx+cos e cx=2, then sin^n x+cos e c...

If `sinx+cos e cx=2,` then `sin^n x+cos e c^n x` is equal to

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
  1. If x+y+z=pi/2, then prove that |[sinx,siny,sinz],[cosx,cosy,cosz],[c...

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  2. In a right-angled isosceles triangle, the ratio of the circumradius an...

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  3. If sinx+cos e cx=2, then sin^n x+cos e c^n x is equal to

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  4. Solve 2sin^(2)x-5sinxcosx-8cos^2x=-2

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  5. Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot

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  6. In A B C ,(sinA(a-bcosC))/(sinC(c-bcosA) =

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  7. If sinx+sin y+sinz+sinw=-4, then the value of sin^(400)x+sin^(300)y+si...

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  8. Prove that cos20^0cos40^0cos60^0cos80^0=1/(16)dot

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  9. Find common roots of the equations 2sin^2x+sin^2 2x=2a n dsin2x+cos2x=...

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  10. The sides of a triangle are in A.P. and its area is 3/5t h of the an e...

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  11. If 1+sinx+sin^2x+sin^3x+oo is equal to 4+2sqrt(3),0ltxltpi, then xis ...

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  12. If K=sin(pi/(18))sin((5pi)/(18))sin((7pi)/(18)), then the numerical va...

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  13. One of the general solutions of 4sin^4x+cos^4x=1 is npi+-alpha/2,alph...

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  14. The value of the expression (tan^2 20^0-sin^2 20^0)/((tan^2 20^0)(sin^...

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  15. A piece of paper is in the shape of a square of side 1m long. It is cu...

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  16. If sinx+cosx=(sqrt(7))/2, where x in 1s t quadrant, then tan(x/2) is e...

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  17. If tantheta+sectheta=1. 5 , find sintheta,tantheta and secthetadot

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  18. Show that the line joining the incenter to the circumcenter of triangl...

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  19. For n in Z , the general solution of (sqrt(3)-1)sintheta+(sqrt(3)+1)c...

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  20. The value of cot70^0+4cos70^0 is

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