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If f: R rarr R be defined by f(x)= e^(x)...

If `f: R rarr R` be defined by `f(x)= e^(x) and g: R rarr R` be defined by `g(x)= x^(2)`. The mapping gof : `R rarr R` be defined by (g o f) `(x)= g [f(x)] A x in R`. Then

A

g o f is bijective but f is not injective

B

g o f is injective and g is injective

C

g o f is injective but g is not bijective

D

g o f is surjective and g is surjective

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2018-MULTIPLE CHOICE QUESTIONS
  1. On In a relation rho is defined by x rho y if and only if x-y is zero ...

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

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  3. If f: R rarr R be defined by f(x)= e^(x) and g: R rarr R be defined by...

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  4. In order to get a head at least once with probility ge 0.9. The minimu...

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

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  6. If sin 6 theta + sin 4theta + sin 2theta= 0, then general value of the...

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

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

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

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

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

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

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

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

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

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

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

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  19. The foot of the perpendicular drawn from the point (1, 8,4) on the lin...

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  20. The approximate value of sin 31^(@) is

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