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[sinbeta+sin(180-beta)+sin(180+beta) ]" ...

`[sinbeta+sin(180-beta)+sin(180+beta) ]" cosecbeta` =________________.

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PEARSON IIT JEE FOUNDATION-TRIGONOMETRY-Very Short Answer Type questions
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  2. Convert250^(g) into other two measures.

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  3. sin(180+theta)+cos(270+theta)+cos(90+theta)+sin*(360+theta) = .

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  4. If theta +costheta=1 and 0^(@)lethetale90^(@), " then the possible val...

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  5. Evaluate sin^(2)45^(@)+cos^(2)60^(@)+cosec^(2)30^(@).

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  6. If A,B,C and D are the angles of cyclic quadrilateral, prove that: i...

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  7. cosec(7pi+theta)*(8pi+theta)= .

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  8. If theta(1)=(7)/(25)and theta(2)=(24)/(25), " then find the relation b...

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  9. Find the value of tan 1140^(@).

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  10. If sin(A+B)=cos(A-B)=(sqrt3)/(2), then cot2A=.

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  11. If Delta ABC is an isosceles traingle and right angled at B, then (tan...

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  12. [sin(x-pi)+cos(x-pi//2)]*cos(x-2pi)=.

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  13. tan(A+B)tan(A-B)= .

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  14. The angle of a quadrilateral are in the ratio 1 : 2 : 3 : 4. Then the ...

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  15. If tan(A+B)tan(A-B) = .

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  16. [sinbeta+sin(180-beta)+sin(180+beta) ]" cosecbeta =.

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  17. Express (tantheta+1)/(tantheta-1) as a single trignometric ratio.

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  18. If cosectheta+cottheta=3, " then find " costheta.

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  19. The top of a building from a fixed point is observed at an angle of el...

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  20. If cottheta=(4)/(3) " where " 180ltthetalt270, " then " sin theta+c...

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