1
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+3
-0.75
The area enclosed between the curves $$y = a{x^2}$$ and
$$x = a{y^2}\left( {a > 0} \right)$$ is $$1$$ sq. unit, then the value of $$a$$ is
A
$$1/\sqrt 3 $$
B
$$1/2$$
C
$$1$$
D
$$1/3$$
2
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
If $$\omega $$ $$\left( { \ne 1} \right)$$ be a cube root of unity and $${\left( {1 + {\omega ^2}} \right)^n} = {\left( {1 + {\omega ^4}} \right)^n},$$ then the least positive value of n is
A
2
B
3
C
5
D
6
3
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
If $$f\left( x \right) = {x^a}\log x$$ and $$f\left( 0 \right) = 0,$$ then the value of $$\alpha $$ for which Rolle's theorem can be applied in $$\left[ {0,1} \right]$$ is
A
$$-2$$
B
$$-1$$
C
$$0$$
D
$$1/2$$
4
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
If $$f\left( x \right) = {x^3} + b{x^2} + cx + d$$ and $$0 < {b^2} < c,$$ then in $$\left( { - \infty ,\infty } \right)$$
A
$$f\left( x \right)$$ is a strictly increasing function
B
$$f\left( x \right)$$ has a local maxima
C
$$f\left( x \right)$$ is a strictly decreasing function
D
$$f\left( x \right)$$ is bounded
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