Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

If a2 + 9/a2 =31, then what is the value of a - 3/a?

Asked by Vikas 15th March 2017, 3:24 PM
Answered by Expert
Answer:

begin mathsize 16px style Given space straight a squared plus 9 over straight a squared equals 31
Adding space minus 6 space on space both space sides comma space we space get
straight a squared minus 6 plus 9 over straight a squared equals 31 minus 6
rightwards double arrow open parentheses straight a minus 3 over straight a close parentheses squared equals 25
rightwards double arrow straight a minus 3 over straight a equals plus-or-minus 5 end style

Answered by Expert 15th March 2017, 3:42 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!