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If `sintheta=x and sectheta=y` then find the value of `cottheta`

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FULL MARKS-TRIGONOMETRY-ADDITIONAL QUESTIONS SOLVED (II)
  1. Prove that : sec^(2)theta+"cosec"^(2)theta=sec^(2)theta*"cosec" ^(2)t...

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  2. Prove that sintheta/(1-costheta)=cosectheta+cot theta

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  3. Prove that sectheta(1-sintheta)(sectheta+tantheta)=1

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  4. Prove that (sintheta)/(cosectheta+cottheta)=1-costheta

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  5. Prove that identity (sintheta)/(cosectheta)+costheta/sectheta=1

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  6. Prove that identity sqrt((1-costheta)/(1+costheta))=cosectheta-cotthet...

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  7. Prove that identity [cosec(90^(@)-theta)-sin(90^(@)-theta)][cosectheta...

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  8. A kite is flying at a height of 60 m above the ground.The string attac...

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  9. Find the angle of elevation of the top of a tower from a point on the ...

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  10. A ramp for unloading a moving truck, has an angle of elevation of 30^(...

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  11. A girl of height 150cm stands in front of a lamp-post and casts a shad...

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  12. Prove that sqrt(cot^(2)theta-cos^(2)theta)=cottheta.costheta

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  13. Prove that (1+sintheta)/costheta+costheta/(1+sintheta)=2sectheta

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  14. A tower is 100sqrt(3) metres high. Find the angle of elevation of its ...

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  15. If sintheta=x and sectheta=y then find the value of cottheta

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  16. A circus artist is climbing a 20m long rope, which is tightly stretche...

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  17. A kite is flying at a height of 60 m above the ground.The string attac...

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  18. Prove that sin^(6)theta+cos^(6)theta+3sin^(2)thetacos^(2)theta=1

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