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1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
In a triangle $$PQR,\;\;\angle R = {\pi \over 2}.\,\,If\,\,\tan \,\left( {{P \over 2}} \right)$$ and $$ \tan \left( {{Q \over 2}} \right)$$ are the roots of $$a{x^2} + bx + c = 0,\,\,a \ne 0$$ then
A
$$a = b + c$$
B
$$c = a + b$$
C
$$b = c$$
D
$$b = a + c$$
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
If both the roots of the quadratic equation $${x^2} - 2kx + {k^2} + k - 5 = 0$$ are less than 5, then $$k$$ lies in the interval
A
$$\left( {5,6} \right]$$
B
$$\left( {6,\,\infty } \right)$$
C
$$\left( { - \infty ,\,4} \right)$$
D
$$\left[ {4,\,5} \right]$$
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The value of $$a$$ for which the sum of the squares of the roots of the equation
$${x^2} - \left( {a - 2} \right)x - a - 1 = 0$$ assume the least value is
A
$$1$$
B
$$0$$
C
$$3$$
D
$$2$$
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
If the roots of the equation $${x^2} - bx + c = 0$$ be two consecutive integers, then $${b^2} - 4c$$ equals
A
$$-2$$
B
$$3$$
C
$$2$$
D
$$1$$
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