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Evaluate (sin43^@)/(cos47^@)+(sec32^@)/(...

Evaluate `(sin43^@)/(cos47^@)+(sec32^@)/(cosec58^@)`

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DISHA PUBLICATION-TRIGONOMETRY AND ITS APPLICATIONS-Practice Exercise (Foundation Level)
  1. Evaluate (sin43^@)/(cos47^@)+(sec32^@)/(cosec58^@)

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  2. Evaluate : cos1^(@)cos2^(@)cos3^(@). . . cos179^(@)

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  3. sin^2theta+cosec^2theta is always

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  4. If sintheta+costheta=a and (sintheta+costheta)/(sinthetacostheta)=b, t...

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  5. The value of (sin^2""7""1/2""+cos^2""7""1/2""^@)-(sin^2""30^@+cos^2""3...

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  6. If tan15^@=2-sqrt3, then the value of cot^2""75^@

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  7. If x=psectheta and y=qtantheta then

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  8. If btantheta=a, the value of (asintheta-bcostheta)/(asintheta+bcosthet...

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  9. If tantheta+sintheta=m and tan theta-sin theta=n, then find the value ...

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  10. tan9^@xxtan27^@xxtan63^@xxtan81^@= (a)4 (b)3 (c)2 (d)1

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  11. In the adjoining figure, the length of BC is (a)2sqrt3 cm (b)3sq...

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  12. If the angle of depression of an object from a 75 m high tower is 30^@...

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  13. The angle of elevation of the top of a tower at a point G on the groun...

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  14. The top of a broken tree has its top touching the ground (shown in the...

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  15. An aeroplane flying horiontally 1 km above the ground is observed at a...

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  16. A ladder 25 m long is leaning against a wall which is perpendicular to...

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  17. If the lengthof the shadow of a tower is sqrt(3) times its height of t...

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  18. The angles of elevation of the top of a tower from two points at dista...

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  19. An aeroplane at a height of 600 m passes vertically above another aero...

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