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- Convert 10^(@) into radians.
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- Convert 3 radians into degrees.
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- If the arcs of the same length in two circles subtend angles 65^(@) an...
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- The radius of a cirle is 30 cm. Find the length of an arc of this circ...
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- The minute hand of a watch is 5cm long. How far does its tip move in 3...
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- If sin theta=-12/13 and theta lies in the IV quadrant, then find all o...
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- If costheta=1/2\ a n d\ pi<theta<(3pi)/2 , find the value of 4tan^2the...
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- Find the values of the following trignometric ratios: (a) cos 855^(@)...
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- Prove that (a) sin^(2)(pi/6) + cos^(2)( pi/3) - tan^(2)(pi/4) = -1/2 ...
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- In a triangle ABC, prove that (a)cos(A + B) + cos C = 0 (b)tan( (A+...
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- Using the graph, determine the values of theta, for which sin theta an...
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- If sinA=3/5 and cosB =-12/15, where A and B both lie in second quadran...
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- Find the value of cos 75^(@)
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- (tan(pi/4+x))/(tan(pi/4-x)) = ((1+tanx)/(1-tanx))^(2)
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- Prove that tan8theta - tan6theta - tan2theta= tan8theta tan6theta ta...
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- i) If A+B=pi/4 prove that: (cotA-1)(cotB-1)=2 ii) If tan(picosthet...
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- cos 20^@.cos 40^@.cos 60^@ cos 80^@=
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- Prove that, sin20^@sin40^@sin80^@=sqrt3/8.
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- (sinA+sin3A)/(cosA+cos3A)=tan2A
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- cos((3pi)/(4)+x)-cos((3pi)/(4)-x) = -sqrt(2)sinx
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