Ask a Doubt
Request a call back

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

CBSE Class 9 Answered

If x2 + 1/x2 = 51 then find the x+l/x ?
Asked by Vikas | 20 Mar, 2017, 03:22: PM
answered-by-expert Expert Answer

begin mathsize 16px style Given space straight x squared plus 1 over straight x squared equals 51 Adding space 2 space on space both space sides comma space we space get space straight x squared plus 1 over straight x squared plus 2 equals 51 plus 2 rightwards double arrow open parentheses straight x plus 1 over straight x close parentheses squared equals 53 Taking space square space root space on space both space sides comma space we space get straight x plus 1 over straight x equals plus-or-minus square root of 53 end style

Answered by | 20 Mar, 2017, 03:30: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Maths
3√5+√3/√5-√3
Asked by gulshanelectronics2017 | 15 Apr, 2024, 05:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
find the value of n in 7^2n+1÷49=7^3
Asked by tripura78839 | 12 Apr, 2024, 09:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
how to solve it
question image
Asked by singhanjali0199 | 12 Apr, 2024, 08:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
√2x^2+3x+√2
question image
Asked by killerstealer593 | 11 Apr, 2024, 07:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
x²-22x+120
Asked by rson0295 | 01 Apr, 2024, 08:55: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Draw the graph of the equation of line 2x + 3y = 6. Write the co ordinates of the point where the line intersects X-axis and Y-axis.
question image
Asked by saee.shinde3069 | 31 Mar, 2024, 10:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
locate √2 on number line
Asked by rathoreraj7296 | 31 Mar, 2024, 08:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
ab is diameter of circle with centre o . CD is a code equal to the radius of the circle a c and b b when extend intersect at the point e prove that angle a e b is equals to 60 degree
Asked by divyanshibirla037 | 29 Mar, 2024, 03:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
5x=25 find x.
Asked by dhokwaltushar | 25 Mar, 2024, 04:26: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
expand(2x+1)³
Asked by durgavenkatlakshmi1 | 20 Mar, 2024, 03:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×