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The period of f(x)=sin((pix)/(n-1))+ cos...

The period of `f(x)=sin((pix)/(n-1))+ cos ((pix)/(n)), n in Z, n gt 2`, is

A

2rnn-1

B

4nn-1

C

2nn-1

D

none of these

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IPUCET PREVIOUS YEAR PAPERS-GGSIPU MATHEMATICS 2004-MCQ
  1. The binary represents of 60 is :

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  2. Which of the following statement is acontradiction (p ^^ q)^^(~(p vv ...

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  3. The period of f(x)=sin((pix)/(n-1))+ cos ((pix)/(n)), n in Z, n gt 2,...

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  4. The radius of the circle whose arc of length 15 km makes an angle of 3...

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  5. If 3^(x)+2^(2x) ge 5^(x), then the solution set for x, is

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  6. The number of integral solutions of (x+1)/(x^2+2)>1/4 is

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  7. The value of k for which the equation (k-2) x^(2) + 8x + k + 4 = 0 has...

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  8. The triangle PQR of which the angles P,Q,R satisfy cos P = (sin Q)/(2...

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  9. The function f(x)=[x^2] (where [y] is the greatest integer less tha...

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  10. A function f(x) =(x^(2) -3x +2)/(x^(2)+ 2x -3) is

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  11. The locus of the point P(x,y) satisfying the relation sqrt((x-3)^2+(y-...

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  12. If z1,z2 and z3 are complex numbers such that |z1|=|z2|=|z3|= |1/z1+1/...

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  13. If a(1),a(2),a(3) be any positive real numbers, then which of the foll...

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  14. If ab=2a+3b, agt0, b gt0, then the minimum value of ab is

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  15. If f(x)=cos[pi^2]x , where [x] stands for the greatest integer functio...

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  16. Let f(x) = (x^2 - 4)/(x^2 + 4) , for |x| ge 2 , then the function f: ...

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  17. The function f(x) = sin| log (x + sqrt(x^2 + 1)) | is :

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  18. Find the range of f(x)=sec(pi/4cos^2x), where -oo<x<oo

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  19. For any three sets A1 , A2 ,A3 . Let B1 = A1 , B2 = A2 - A1 and B3 = A...

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  20. the domain of the function f(x) = (sin ^(-1) (3 - x) )/(log (x -2) ...

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