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ques 1- the quadratic eq.. x2 - 6x + a = - have 1 root in common . the other root of the 1st nd 2nd eq are in the ratio 4:3 then the common root is
a 4
b 3
c 2
d 1
ques 2 - if x2+px+1 is a factor of the expressin ax3 +bx + x = x then ,
A a2 + c2= - ab
B a2-c2= - ab
C a2-c2= ab
d N.O.T
ques 3- if the eq... (m-n)x2 + (n-L)x + L -m = 0has equal roots the L , m nd n satisfy
(a) 2L= m+n
(b) 2m= n+L
(c) m= n+L
(d) L=m+n
ques 4- 1/x+p + 1/x+q = 1/r if it has equal roots same in magnitude but opposite in sign then the product of the roots will be
A (p2+q2)/2
b -(p2+q2)/2
c (p2-q2)/2
d -(p2-+q2)/2
ques 5- all the values of m for which both roots of the equation x2 - 2mx + m2 -1 = 0 are greater that -2 but less than 4, lie in the interval
(a) -2
(b) m3
(c) -1
(d)1
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