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NCERT ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- If in two circles, arcs of the same length subtend angles 60^@and 75^...
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- Find the radian measures corresponding to the following degree measur...
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- A wheel makes 360 revolutions in one minute. Through how many radians...
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- Find the degree measures corresponding to the following radian measur...
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- Prove that: sin 3x + sin 2x - sin x = 4 sin x cosx/2cos(3x)/2
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- Prove that: ((sin7x+sin5x)+(sin9x+sin3x))/((cos7x+cos5x)+(cos9x+cos3x)...
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- Prove that sinx + sin3x + sin5x+ sin7x=4cosxcos2xsin4x
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- Prove that: (cosx-cosy)^2+(sinx-siny)^2=4sin^2(x-y)/2
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- Prove that: (cosx+cosy)^2+(sinx-siny)^2=4cos^2(x+y)/2
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- Prove that: (sin 3 x +sin x) sin x + (cos 3x - cos x) cos x = 0
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- Prove that: 2cospi/(13)cos(9pi)/(13)+cos(3pi)/(13)+cos(5pi)/(13)=0
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- Prove that:(cos4x+cos3x+cos2x)/(sin4x+sin3x+sin2x)=cot3x
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- Prove that:(sinx-sin3x)/(sin^2x-cos^2x)=2sinx
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- Prove that:tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)
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- Prove that: cot x cot 2x - cot 2x cot 3x - cot 3x cot x = 1
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- Prove that:cos6x=32cos^6x-48cos^4x+18cos^2x-1
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- Prove that : cos 4x = 1 - 8 sin^2 x cos^2 x.
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- Find sinx/2,cosx/2 and tanx/2of the following : cotx=-1/3, x in quad...
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- Find sinx/2,cosx/2and tanx/2 of the following : tanx=-4/3, x in quadra...
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- Two trees, A and B are on the same side of a river. From a point C in ...
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