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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Try Yourself
- Convert 10^(@) into radians.
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- Convert 3 radians into degrees.
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- If the arcs of the same lengths m two circles subtend angles 65oand 1...
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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 and pi< theta < (3pi)/2 , find the value of 4tan^2thet...
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- Find the values of the following trigonometric ratio: cos 855^0
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- Prove that 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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- Computer sin 75^(@) , cos 75^(@) and tan 15 ^(@), from the functions o...
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- Prove that:(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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- Prove that : cos 20^0cos 40^0cos 60^0cos 80^0=1/(16)
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- Prove that sin20^(@)sin40^(@)sin80^(@)=(sqrt(3))/(8)
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- Prove that : (sinA+sin3A)/(cosA+cos3A)=tan2A
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- cos((3pi)/(4)+x)-cos((3pi)/(4)-x) = -sqrt(2)sinx
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