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OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
- The value of cos((2pi)/(15))cos((4pi)/(15))cos((8pi)/(15))cos((14pi)/(...
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- Find the value of : cos(pi/15)cos((2pi)/15)cos((3pi)/15)cos((4pi)/15)c...
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- The value of tan 5 theta is
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- If costheta=cos alphacosbeta, then tan((theta+alpha)/(2))tan((theta-al...
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- If abs(cos theta{sin theta+sqrt(sin^2theta+sin^2alpha)})lek, then the ...
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- The value of sin10^@+sin20^@+sin30^@...+sin360^@ is equal to -
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- The expression 3{sin^(4)((3pi)/(2)-alpha)+sin^(4)(3pi-alpha)} -2{s...
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- If sinA+sinB=(pi)/(4),then (tanA+1)(tanB+1) is equal to
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- If sinA+sinB=a and cosA+cosB=b,then cos(A+B)
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- If an angle theta is divided into two parts A and B such that A-B=x an...
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- The value of the expression 3(sin theta- cos theta)^4 + 6(sin theta ...
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- If tan((theta)/(2))=5/2and tan((phi)/(2))=3/4, the value of cos(theta+...
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- If alpha,beta, gamma in(0,(pi)/(2)), then prove that (Sin(alpha+beta+g...
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- If sin x+siny=3(cosy-cosx),then the value of (sin3x)/(sin3y), is
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- If cosx=tany,cos y=tanz cosz=tanx, then the value of sin x, is
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- If k=sin^(6)c+cos^(6)x, then k belongs to the interval
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- The value of tan9^@-tan2 7^@-tan6 3^@+tan8 1^@ is equal to
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- 2tan^2 alpha tan^2 betatan^2gamma+tan^2 alpha tan^2beta+tan^2 betatan^...
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- the value of e^(log(10)tan1^@+log(10)tan2^@+log(10)tan3^@....+log(10)t...
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- For what and only what values of alpha lying between 0 and pi/2 is the...
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