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Find the values of the following trigono...

Find the values of the following trigonometric ratio: `tan ((11pi)/6)`

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RD SHARMA ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. Find the values of the following trigonometric ratio: sin ((5pi)/3) .

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  2. Find the values of the following trigonometric ratio: sin 3060^@

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  3. Find the values of the following trigonometric ratio: tan ((11pi)/6)

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  4. Find the values of the following trigonometric ratio: cos (1125^@)

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  5. Find the values of the following trigonometric ratio: tan315^0

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  6. Find the values of the following trigonometric ratio: cosec\ (-1200^0)

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  7. Find the values of the following trigonometric ratio: cos1755^0

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  8. Find the values of the following trigonometric ratio: sin510^0

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  9. Find the values of the following trigonometric ratio: tan(-585^0)

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  10. Find the values of the following trigonometric ratio: sin 4530^0

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  11. Find the values of the following trigonometric ratio: cos570^0

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  12. Find the values of the following trigonometric ratio: cos 855^0

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  13. Find the values of the following trigonometric ratio: "sin"(-330^0)

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  14. Find the values of the following trigonometric ratio: sin1845^0

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  15. Prove that: t a n 225^0cot 405^0+t a n 765^0cot 675^0=\ 0

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  16. Prove that: sin ((8pi)/3) cos ((23pi)/6)+cos ((13pi)/3) sin ((35pi)/6)...

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  17. Prove that: cos 24^0+cos55^0+cos 125^0+cos 204^@+cos 300^0=1/2

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  18. Prove that: tan(-225^0)cot(-405^0)-tan(-765^0)cot(675^0)=0

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  19. Prove that:cos 570^0sin 510^0+sin(-330^0)cos(-390^0)=0

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  20. Prove that : tan((11pi)/3)-2sin((9pi)/3)-3/4cosec^2(pi/4)+4cos^2((17pi...

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