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The general solution of the equation sin...

The general solution of the equation `sinalpha=1`is

A

a)`alpha=(2n+1)pi/4`

B

b)`alpha=pi/2`

C

c)`alpha=(4n+1)pi/2`

D

d)`alpha=(npi)/2`

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UNITED BOOK HOUSE-MCQ-EXERCISE
  1. Show that 1/(sin10^@)-sqrt3/(cos10^@)=4

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  2. sin12^@.sin48^@=

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  3. The general solution of the equation sinalpha=1is

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  4. If in /\ABC,angleA=45^@,angleB=60^@ ,then the ratio of its sides is

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  5. The sum of the cubes of 1st n natural numbers is

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  6. State which of the following is the value of (1+i+2i^2+i^3+i^4)[given ...

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  7. If the roots of the equation 5x^2 - 7x - k = 0 are reciprocal to one ...

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  8. Solution sets of the inequation -2le(3x-1)/2le1[x in Z]is

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  9. Given ^9P3=x ^9P5 then the value of x is

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  10. If ^25Cr=^25C(2r+1),the value of ^rC5is

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  11. The. coefficient of 10th term in the expansion of (x+1/x)^20

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  12. The 12th term of the scries-n,(n -1), (n - 2),….

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  13. If 5.x, 405 are in G.P, then which of the following is the value of x?

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  14. The perpendicular distance of the straight line 3x + 4y + 15 = 0 from ...

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  15. The angle between the-lines x+sqrt3y+7=0and sqrt3x-y+8=0is

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  16. The distance between the two-parallel lines 3x + 4y + 9 =0and 3x+4y+7=...

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  17. The equation x^2+y^2+2gx+2fy+c=0 represents a point -circle when

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  18. The-equation of the directrix of the parabola 2x^2=3y is

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  19. If the equation x^2/(4-m)+y^2/(m-7)+1=0represents an ellipse then

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  20. The length of the latus rectum of the hyperbola 9x^2-25y^2=225is

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