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 isa 4b 3c 2d 1ques 2 - if x2+px+1 is a factor of the expressin ax3+bx + x = x then ,A a2+ c2= - abB a2-c2= - abC a2-c2= abd N.O.Tques 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+nques 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 beA (p2+q2)/2b -(p2+q2)/2c (p2-q2)/2d -(p2-+q2)/2ques 5- all the values of m for which both roots of the equationx2- 2mx + m2-1 = 0are greater that -2 but less than 4, lie in the interval(a) -2(b) m3(c) -1(d)1

shivam chopra , 11 Years ago

Grade 11