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

shivam chopra , 11 Years ago

Grade 11