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On In a relation rho is defined by x rho...

On In a relation `rho` is defined by `x rho y` if and only if `x-y` is zero or irrational. Then

A

`rho` is equivalence relation

B

`rho` is reflexive but neither symmetric nor transitive

C

`rho` is reflexive & symmetric but not transitive

D

`rho` is symmetric & transitive but not reflexive

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2018-MULTIPLE CHOICE QUESTIONS
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  2. If the following three linear equations have a non-trivial solution, t...

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  4. On the set R of real numbers, the relation rho is defined by x rho y, ...

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  7. A student appears for test I, II and III. The student is successful if...

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  9. If 0 le A le (pi)/(4), then tan^(-1) ((1)/(2) tan 2A) + tan^(-1) (cot ...

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  10. Without changing the direction of the axes, the origin is transferred ...

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  11. The angle between a pair of tangents drawn from a point P to the circl...

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  12. The point Q is the image of the point P(1,5) about the line y=x and R ...

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  13. The angular points of a triangle are A(-1, -7), B(5, 1) and C(1, 4). T...

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  14. If one of the diameters f the circle, given by the equation x^(2)+y^(2...

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  15. A chord AB is drawn from the point A(0, 3) on the circle x^(2)+4x+(y-3...

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  16. Let the occentricity of the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=...

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  17. Let A. B be two distinct points on the parabola y^(2)=4x. If the axis ...

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  18. Let P(a t^(2), 2 a t), Q, R (a r^(2).2 ar) be three points on a parabo...

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  19. Let P be a point on the ellipse (x^(2))/(9) + (y^(2))/(4)=1 and the li...

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  20. A point P lies on a line through Q(1, -2, 3) and is parallel to the li...

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