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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
- Prove that: sin10^0sin30^0sin50^0sin70^0=1/(16)dot
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- In A B C ,(sinA(a-bcosC))/(sinC(c-bcosA) =
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- If sinx+sin y+sinz+sinw=-4, then the value of sin^(400)x+sin^(300)y+si...
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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 npi+-alpha/2,alph...
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- The value of the expression (tan^2 20^0-sin^2 20^0)/((tan^2 20^0)(sin^...
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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 tan(x/2) is e...
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- If tantheta+sectheta=1. 5 , find sintheta,tantheta and secthetadot
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- Show that the line joining the incenter to the circumcenter of triangl...
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- For n in Z , the general solution of (sqrt(3)-1)sintheta+(sqrt(3)+1)c...
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- The value of cot70^0+4cos70^0 is
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- In A B C , right-angled at C , if tanA=sqrt((sqrt5-1)/2) , show tha...
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- If "coses"theta-sintheta=m,sectheta-costheta=n,"eliminate"theta
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- The solution of 4sin^2x+tan^2x+cos e c^2x+cot^2x-6=0i s(n in Z) (a) ...
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- The value of sin (pi/14)sin(3pi/14)sin(5pi/14)sin(7pi/14)sin(9pi/14)si...
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