1
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
Let $$\alpha $$, $$\beta $$ be the roots of $${x^2} - x + p = 0$$ and $$\gamma ,\delta $$ be the roots of $${x^2} - 4x + q = 0.$$ If $$\alpha ,\beta ,\gamma ,\delta $$ are in G.P., then the integral values of $$p$$ and $$q$$ respectively, are
A
$$-2,-32$$
B
$$-2,3$$
C
$$-6,3$$
D
$$-6,-32$$
2
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
Let the positive numbers $$a,b,c,d$$ be in A.P. Then $$abc,$$ $$abd,$$ $$acd,$$ $$bcd,$$ are
A
NOT in A.P./GP./H.P.
B
inA.P.
C
in GP.
D
in H.P.
3
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+2
-0.5
The number of distinct real roots of $$\left| {\matrix{ {\sin x} & {\cos x} & {\cos x} \cr {\cos x} & {\sin x} & {\cos x} \cr {\cos x} & {\cos x} & {\sin x} \cr } } \right|\,$$
$$\, = 0$$ in the interval $$ - {\pi \over 4} \le x \le {\pi \over 4}$$ is
A
0
B
2
C
1
D
3
4
IIT-JEE 2001 Screening
MCQ (Single Correct Answer)
+3
-0.75
The number of integer values of $$m$$, for which the $$x$$-coordinate of the point of intersection of the lines $$3x + 4y = 9$$ and $$y = mx + 1$$ is also an integer, is
A
2
B
0
C
4
D
1
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