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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- If (sinx)/a=(cosx)/b=(tanx)/c=k , then b c+1/(c k)+(a k)/(1+b k) is eq...
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- In A B C ,a=5,b=12 ,c=90^0a n dD is a point on A B so that /B C D=45^...
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- Solve tan5theta=cot2theta
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- If x+y+z=pi/2, then prove that |[sinx,siny,sinz],[cosx,cosy,cosz],[c...
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- In a right-angled isosceles triangle, the ratio of the circumradius an...
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- If sinx+cos e cx=2, then sin^n x+cos e c^n x is equal to 2 (b) 2^n ...
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- Solve 2sin^(2)x-5sinxcosx-8cos^2x=-2
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- Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot
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- In A B C ,(sinA(a-bcosC))/(sinC(c-bcosA) = (a) -2 (b) -1 (c) 0 (d...
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- If sinx+sin y+sinz+sinw=-4, then the value of sin^(400)x+sin^(300)y+s...
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- Prove that cos20^0cos40^0cos60^0cos80^0=1/(16)dot
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- Find common roots of the equations 2sin^2x+sin^2 2x=2a n dsin2x+cos2x=...
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- The sides of a triangle are in A.P. and its area is 3/5t h of the an e...
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- If 1+sinx+sin^2x+sin^3x+oo is equal to 4+2sqrt(3),0ltxltpi, then xis ...
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- If K=sin(pi/(18))sin((5pi)/(18))sin((7pi)/(18)), then the numerical va...
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- One of the general solutions of 4sin^4x+cos^4x=1 is
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- The value of the expression (tan^2 20^0-sin^2 20^0)/(tan^2 20^0+sin^2 ...
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- A piece of paper is in the shape of a square of side 1m long. It is cu...
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- If sinx+cosx=(sqrt(7))/2, where x in 1s t quadrant, then tanx/2 is ...
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- If tantheta+sectheta=1. 5 , find sintheta,tantheta and secthetadot
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