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Suppose z=x+iy where x and y are real nu...

Suppose `z=x+iy` where x and y are real numbers and `i=sqrt(-1)`. The points (x, y) for which `(z-1)/(z-i)` is real, lie on

A

an ellipse

B

a circle

C

a parabola

D

a straight line

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2013-MULTIPLE CHOICE QUESTIONS
  1. If one end of a diameter of the circle 3x^(2)+3y^(2)-9x+6y+5=0 is (1, ...

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  2. The value of cos^(2)75^(@)+cos^(2)45^(@)+cos^(2)15^(@)-cos^(2)30^(@)-c...

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  3. Suppose z=x+iy where x and y are real numbers and i=sqrt(-1). The poin...

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  4. The equation 2x^(2)+5xy-12y^(2)=0 represents a

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  5. The line y=x intersects the hyperbola (x^(2))/(9)-(y^(2))/(25)=1 at th...

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  6. The equation of the circle passing through the point (1, 1) and the po...

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  7. Six positive numbers are in G.P., such that their product is 1000. If ...

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  8. In the set of all 3xx3 real matrices a relation is defined as follows....

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  9. The number of lines which pass through the point (2, -3) and are a dis...

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  10. If alpha, beta are the roots of the quadratic equation ax^(2)+bx+c=0 a...

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  11. For any two real numbers a and b, we define a R b if and only if sin^(...

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  12. Let n be a positive even integer. The ratio of the largest coefficient...

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  13. Let exp (x) denote the exponential function e^(x). If f(x)=exp(x^((1)/...

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  14. The sum of the series (1)/(1xx2)""^(25)C(0)+(1)/(2xx3)""^(25)C(1)+(1)...

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  15. Five numbers are in A.P, with common difference ne 0. If the 1^(st), 3...

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  16. The minimum value of the function f(x)=2|x-1|+|x-2| is

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  17. If P, Q, R are angles of an isoseles triangle and angle P = (pi)/(2), ...

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  18. A line passing through the point of intersection of x+y=4 and x-y=2 ma...

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  19. Let [a] denote the greatest integer which is less than or equal to a. ...

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  20. If P=((2,-2,-4),(-1.3,4),(1,-2,-3)), then P^(5) equals.

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