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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
- In acute angled triangle A B C ,A D is the altitude. Circle drawn with...
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- Show that sin^2 5^0+sin^2 10^0+sin^2 15^0+....+sin^2 90^0=9 1/2dot
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- Solve (sin^3x/2-cos^3x/2)/(2+sinx)=(cosx)/3
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- Prove that 4cos(2pi)/7dotcospi/7-1=2cos(2pi)/7dot
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- Suppose alpha,beta,gammaa n ddelta are the interior angles of regular ...
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- Find the value of cos^2pi/(16)+cos^2(3pi)/(16)+cos^2(5pi)/(16)+cos^2(7...
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- Solve (sqrt(5)-1)/(sinx)+(sqrt(10+2sqrt(5)))/(cosx)=8,x in (0,pi/2)
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- Prove that cos((2pi)/(15))cos((4pi)/(15))cos((8pi)/(15))cos((16pi)/(15...
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- Let L be the line of intersection of the planes 2x""+""3y""+""z""=""...
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- If sin(120° – α) = sin(120° – β) and 0 < α, β < π then find the relati...
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- Solve cosxcos2xcos3x=1/4
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- Prove that sin 6^@ sin 42^@sin 66^@sin 78^@=1/16
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- If the since of the angles A and B of a triangle ABCsatisfy the equati...
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- Find the sign of the values of tan113^0-cos107^0=a and tan107^0-cos105...
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- Solve the equation (sqrt(3))/2sinx-cosx=cos^2x
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- Each question contains statements given in two columns which have to b...
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- If xsina+ysin2a+zsin3a=sin4a, xsinb+ysin2b+zsin3b=sin4b, xsinc+ysin2...
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- Prove that (sinx-cosx+1)/(sinx+cosx-1)=secx+tanx
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- The lengths of the medians through acute angles of a right-angled tr...
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- If 2tan^2x-5secx=1 is satisfied by exactly seven distinct values of x ...
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