Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

I just came up with the problem can u solve this for me . If the roots of the Q.E   hx2 +21x +10=0 (Where h is not equal to 0) are in the ratio 2:5, find the possible values of h
Asked by Umesh.rch | 19 Feb, 2018, 12:40: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space straight alpha space and space straight beta space are space the space roots space of space the space given space quadratic space equation.
Given space that space straight alpha over straight beta equals 2 over 5
rightwards double arrow 5 straight alpha equals 2 straight beta
rightwards double arrow 5 straight alpha minus 2 straight beta equals 0............ left parenthesis straight i right parenthesis
Also comma
straight alpha plus straight beta equals fraction numerator negative 21 over denominator straight h end fraction........... left parenthesis ii right parenthesis
αβ equals 10 over straight h............. left parenthesis iii right parenthesis
solving space left parenthesis straight i right parenthesis space and space left parenthesis ii right parenthesis space you space get space straight alpha equals fraction numerator negative 6 over denominator straight h end fraction space and space straight beta equals fraction numerator negative 15 over denominator straight h end fraction
Put space it space in space left parenthesis iii right parenthesis
fraction numerator negative 6 over denominator straight h end fraction cross times fraction numerator negative 15 over denominator straight h end fraction equals 10 over straight h
Simplifying space straight h equals 9 end style
Answered by Sneha shidid | 19 Feb, 2018, 02:30: PM
CBSE 10 - Maths
Asked by afiyamallick12 | 23 Feb, 2024, 11:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by ruchipandey20071978 | 21 May, 2023, 10:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by varma.renu9481 | 25 Jan, 2023, 04:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
hi
question image
Asked by chaudahryanshika | 03 Jan, 2023, 10:04: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by devchauhan25007 | 17 Jul, 2022, 04:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by sdiyashika | 12 Apr, 2022, 03:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by hazelvermah | 19 Apr, 2021, 09:02: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by mdkingofficial786 | 21 Dec, 2020, 04:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by rajvarshneytushar | 24 Sep, 2020, 12:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by Uppalrakesh71 | 10 Apr, 2020, 03:38: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×