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RD SHARMA ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- Find the values of the following trigonometric ratio: cos 855^0
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- Find the values of the following trigonometric ratio: "sin"(-330^0)
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- Find the values of the following trigonometric ratio: sin1845^0
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- Prove that: t a n 225^0cot 405^0+t a n 765^0cot 675^0=\ 0
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- Prove that: sin ((8pi)/3) cos ((23pi)/6)+cos ((13pi)/3) sin ((35pi)/6)...
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- Prove that: cos 24^0+cos55^0+cos 125^0+cos 204^@+cos 300^0=1/2
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- Prove that: tan(-225^0)cot(-405^0)-tan(-765^0)cot(675^0)=0
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- Prove that:cos 570^0sin 510^0+sin(-330^0)cos(-390^0)=0
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- Prove that : tan((11pi)/3)-2sin((9pi)/3)-3/4cosec^2(pi/4)+4cos^2((17pi...
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- Prove that: 3sin(pi/6)sec(pi/3)-4sin((5pi)/6)cot(pi/4)=1
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- In a DeltaA B C prove that cos(A+B)+cos C=0.
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- In a DeltaA B C prove that cos ((A+B)/2)=sin (C/2).
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- In a "DeltaA B C prove that tan(("A"+"B")/2)=cot("C"/2)
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- If A ,\ B ,\ C ,\ D be the angles of a cyclic quadrilateral, taken in ...
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- Find x from the following equation: cos e c(90^0+theta)+x costhetacot(...
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- Find x from the following equation: xcot(90^0+theta)+tan(90^0+theta)si...
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- Prove that: t a n 720^0-cos 270^0-sin 150^0cos 120^0=1/4
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- Prove that: sin 780^0sin 480^0+cos 120^0sin 150^0=1/2
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- Prove that: sin780^0sin 120^0+cos 240^0sin390^0=1/2
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- Prove that: sin600^0cos 390^0+cos 480^0sin 150^0=-1
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