Home
Class 10
MATHS
If 2 and 1//2 are the zeros of px^(2) +...

If 2 and `1//2` are the zeros of `px^(2) +5x +r`, then

A

p=r=2

B

p=r=-2

C

p=2, r=-2

D

p=-2, r=2

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SAMPLE QUESTION PAPER

    OSWAL PUBLICATION|Exercise Section-A|8 Videos
  • SAMPLE QUESTION PAPER

    OSWAL PUBLICATION|Exercise Section - B|5 Videos
  • SAMPLE PAPER 7

    OSWAL PUBLICATION|Exercise Section -C|7 Videos
  • SOME APPLICATIONS OF TRIGONOMETRY (HEIGHTS AND DISTANCES)

    OSWAL PUBLICATION|Exercise CASE-BASED MCQs |15 Videos

Similar Questions

Explore conceptually related problems

If 2 and (1)/(2) are the zero of px^(2)+5x+r , then :

Find the zeros of 2x^2 - 5x + 3 .

If both x=2 and x=(1)/(2) are factors of px^(2)+5x+r , then p=

If both ( x- 2 ) and (x-(1)/(2)) are factor of px^(2)+5x+r , then the relation between p and r

if both x-2 and x-(1)/(2) are factors of px^(2)+5x+r. then show that p=r.

If r and s are roots of x^(2) + px + q = 0 , then what is the value of (1//r^(2))+ ( 1//s^(2)) ?

If both x-2 and x-(1)/(2) are factors of px^(2)+5x+r, show that p=r

If a,b are the roots of quadratic equation x^(2)+px+q=0 and g,d are the roots of x^(2)+px-r-0, then (a-g)*(a-d) is equal to:

Verify that 1,-2, and 1/2 are zeroes of 2x^(3)+x^(2)-5x+2. Also verify the relationship between the zeroes and the coefficients