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2sin((5pi)/12) sin(pi/12)=............

`2sin((5pi)/12) sin(pi/12)=.........`

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KUMAR PRAKASHAN-OBJECTIVE SECTION AS PER NEW PAPER SCHEME -Trigonometric Functions (Fill in the blanks)
  1. cos((65pi)/4)=.........

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  2. If cot x = - sqrt(5) and x in second quadrant then sin x = ..........

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  3. 2sin((5pi)/12) sin(pi/12)=.........

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  4. The value of (1-tan^(2)(15^(@)))/(1+tan^(2)(15^(@))) is ………..

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  5. If A +B + C = pi then secA (cos B cos C - sin B sin C) = .........

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  6. 3sin(pi/9) - 4sin^(3)(pi/9) = .......

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  7. One root of the equation 6x - 8x^3=sqrt3 is .........

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  8. (sin(3alpha))/(1+2cos(2alpha))= ..........

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  9. cos(47^@) cos (13^@) - sin (47^@) sin(13^@)= .........

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  10. sin((7pi)/(12))cos(pi/4)-cos((7pi)/(12))sin(pi/4)=...........

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  11. Sum of the measure of an angle of cyclic quadrilateral ABCD is ..........

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  12. Solution set of the equation 3 tan^(2) theta + 4 tan theta + 2 =0 is ....

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  13. For DeltaABC , sinA + sinB + sinC

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  14. In DeltaABC, m angleA = 90 , m angle B = 30 and a = 10^@ then b = .......

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  15. In DeltaABC if m angle C = 90^@ than tanA + tanB = ......(where a,b,c ...

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  16. Solution of the equation 2cos x + 1 = 0 is ...........

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  17. Height of the tower and multy storied building is same of 30 mets . Th...

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  18. .......is the angle of elevation of sun if height of building and its ...

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  19. At .........height one can reach by walking x mets with slope 30^@ and...

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  20. Radian value of 47^@ 30' is ......

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