If a.ß are the roots of x × x+ x + 1 = 0, then
a) 1
6.
b)-1
c)2
d) - 2
The number of values of pair (a, b) for which a (x + 1) +b (x -3x-2) + x + 1 = 0 is an identity in x
11
a) 0
b) 1
c)2
d) infinite
To make the quadratic equation x + 2 (K+1)x+K=0 as a pure quadratic equation 1 ]
a) K=0
b) K=1
c) K =- 1
d) K = 2
f(x) = ax + bx + c =0 is a quadratic equation. If a + c =b, then the roots off(x) = 0 are 1
a) 1.
b) I. -
c) – 1. - 0
d)-1.
9.
For the equation x + 5 [x] + 6 = 0
11
a) The sum of the roots is one
b) There is only one root
c) There are two roots
d) The sum of the roots is zero
The quadratic equation for which the sum of the roots is 5 and the sum of the squares of the roots is 13
10.
a) x – 5x + 130
b) x² + 5x+8=0
c) x² – 5x+6=0
d) x² - 6x +5=0
Answers
Answered by
1
Answer:
d)
a)
d)
c)
Step-by-step explanation:
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