MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade:
        a, b, c are real and AIs not equal to 0 and the quadratic equation ax square +bx +c=0 has no real roots then which of the following is not always true? A)  a+b+c >0B)  c(a+b+c) >0C)  c(a-b+c)>0D)  (a+b+c) (a-b+c)>0
7 months ago

Answers : (1)

subrat
61 Points
							
In option A, B, C we cannot comment as we have no clue of sign of a and c.
In option D on simplification we get  (a+c)2 – b2 and b2 – 4ac2 + bx + c=0 are not real). This means b2 > 0. Hence D is the answer.2 – b2 >4ac. This means that (a+c)2 GM on a and c we get (a+c)
7 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 1,590 off

COUPON CODE: SELF10


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Get Extra Rs. 233 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details