CBSE Class 10 Answered
if one zero of the polynomial is (a²+9) x²+13x+6a is reciprocal of the other ,find the value of a
![question image](http://images.topperlearning.com/topper/new-ate/top_mob166090526174827667503b9027-ee67-4a8f-bb12-d21d073595ae.jpg)
Asked by sharmaraushan079 | 19 Aug, 2022, 16:04: PM
Let t and 1/t be the roots of (a2 + 9) x2 + 13x + 6a.
Product of the roots = t x 1/t = (constant term)/(coefficient of x2)
⇒ (6a) / (a2 + 9) = t x 1/t
⇒ (6a) / (a2 + 9) = 1
⇒ a2 - 6a + 9 = 0
⇒ (a - 3)2 = 0
⇒ a - 3 = 0
⇒ a = 3
Therefore, the value of a is 3
Answered by Arun | 23 Aug, 2022, 10:17: AM
CBSE 10 - Maths
Asked by nikhilupadhyay6a | 28 May, 2024, 14:51: PM
CBSE 10 - Maths
Asked by sharmaraushan079 | 19 Aug, 2022, 16:04: PM
CBSE 10 - Maths
Asked by Marie | 01 Feb, 2020, 17:20: PM
CBSE 10 - Maths
Asked by sucharitasahoo1 | 23 Apr, 2017, 19:29: PM
CBSE 10 - Maths
Asked by | 09 Mar, 2008, 20:16: PM
CBSE 10 - Maths
Asked by | 07 Mar, 2008, 16:13: PM
CBSE 10 - Maths
Asked by | 05 Mar, 2008, 17:57: PM
CBSE 10 - Maths
Asked by | 04 Mar, 2008, 22:01: PM