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Find the value of : cosec (-1410^@)....

Find the value of :
`cosec (-1410^@)`.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. Find the value of : cot ((-15 pi)/4) .

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  2. Find the value of : sec frac (11 pi)(4).

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  3. Find the value of : cosec (-1410^@).

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  4. Prove that: (cos 135^@ - cos120^@)/(cos 135^@ + cos120^@) =3-2 sqrt2 .

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  5. Prove that: sin 150^@ cos 120^@+ cos 330^@ sin 660^@= - 1.

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  6. Prove that : sin 105^@ + cos 105^@ = cos 45^@.

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  7. Simplify the following : sin(90^@+ theta) tan (270^@ +theta) cot (90^...

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  8. Simplify the following : (sin (- theta) tan(180^@ +theta) tan (90^@ +t...

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  9. Simplify the following : (cos (360^@-theta) cosec (180^@+ theta) cot (...

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  10. Prove that cos theta+ sin (270^@-theta)- sin (270^@-theta)+ cos (180^@...

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  11. Prove that : (cos(pi+theta)cos(-theta))/(sin (pi-theta) cos (pi/2+ the...

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  12. Prove that : sin^2 frac (pi)(6)+ cos^2 frac(pi)(3)- tan^2 frac(pi)(4)=...

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  13. Prove that: 2sin^2frac (pi)(6)+cosec^2frac (7pi)(6)cos^2frac (pi)(3)=3...

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  14. Prove that: cot^2frac (pi)(6)+cosecfrac (5pi)(6)+3tan^2frac (pi)(6)=6

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  15. Prove that : 2 sin^2 frac (3pi)(4)+ 2cos^2 frac (pi)(4) +2 cos^2 frac...

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  16. Prove that : 3 sin frac (pi)(6) sec frac (pi)(3)-4 sin frac (5pi)(6) c...

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  17. Prove that : (cos(pi+theta)cos(-theta))/(sin (pi-theta) cos (pi/2+ the...

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  18. Prove the following: cos((3pi)/2+x)cos(2pi+x)[cot((3pi)/2-x)+cot(2pi+x...

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  19. Find ‘x’ from the equation : cosec (90^@ -theta) - x sin (90^@- theta)...

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  20. Find ‘x’ from the equation : cosec (90^@ -theta) - x sin (90^@- theta)...

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