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If Z(1) and Z(2) are two non-zero comple...

If `Z_(1)` and `Z_(2)` are two non-zero complex numbers such that `|Z_(1)+Z_(2)|=|Z_(1)|+|Z_(2)|`, then arg `Z_(1)-` arg `Z_(2)` is

A

0

B

`-(pi)/(2)`

C

`(pi)/(2)`

D

1

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-MULTIPLE CHOICE QUESTIONS
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  2. The sum of the first 26 odd positive integers is

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  4. The solution of (d^(2)y)/(dx^(2))-4(dy)/(dx)=0 is

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  6. A particle is projected vertically upwards with a velocity of 4900 cm/...

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  7. The value of sin (-300^(@)) is

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  8. The solution of the differential equation (dy)/(dx)=e^(x-y)+1 is

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  9. The area of the region bounded by the curves y=x^(2) and x=y^(2) is

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  10. If f(x)=|x|+|1-x|, -2le x le 3, then the set of points of discontinuit...

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  11. Two cars start moving from the junction point of two perpendicular roa...

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  12. The value of lim(x to 0)(1-cos x)/(x^(2))

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  13. If A=[(2,3),(5,-2)] then A^(-1) is

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  14. The value of x, for which log(3)(5.3^(x-1)+1), log(9)(3^(1-x)+1) and 1...

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  15. A point moves in such a manner that the sum of the squares of the dist...

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  16. If the roots of the equation x^(2)+alpha^(2)=8x+6alpha are real, then ...

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  17. If two circles x^(2)+y^(2)+2gx+2fy=0 and x^(2)+y^(2)+2g'x+2f'y=0 touch...

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  18. The point on the curve y^(2)=x, the tangent at which makes an angle 45...

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  19. lim(x to oo)(1+(1)/(x))^(x//2) is equal to

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  20. The value of lim(n to oo) [(n!)/(n^(n))]^((1)/(n)) is equal to -

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