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DISHA PUBLICATION-TRIGONOMETRY AND ITS APPLICATIONS-Practice Exercise (Foundation Level)
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- sin^2theta+cosec^2theta is always
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- If sintheta+costheta=a and (sintheta+costheta)/(sinthetacostheta)=b, t...
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- The value of (sin^2""7""1/2""+cos^2""7""1/2""^@)-(sin^2""30^@+cos^2""3...
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- If tan15^@=2-sqrt3, then the value of cot^2""75^@
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- If x=psectheta and y=qtantheta then
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- If btantheta=a, the value of (asintheta-bcostheta)/(asintheta+bcosthet...
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- If tantheta+sintheta=m and tan theta-sin theta=n, then find the value ...
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- tan9^@xxtan27^@xxtan63^@xxtan81^@= (a)4 (b)3 (c)2 (d)1
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- In the adjoining figure, the length of BC is (a)2sqrt3 cm (b)3sq...
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- If the angle of depression of an object from a 75 m high tower is 30^@...
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- The angle of elevation of the top of a tower at a point G on the groun...
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- The top of a broken tree has its top touching the ground (shown in the...
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- An aeroplane flying horiontally 1 km above the ground is observed at a...
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- A ladder 25 m long is leaning against a wall which is perpendicular to...
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- If the lengthof the shadow of a tower is sqrt(3) times its height of t...
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- The angles of elevation of the top of a tower from two points at dista...
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- An aeroplane at a height of 600 m passes vertically above another aero...
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