CBSE Class 9 Answered
if a+1/a=17/4, then find the value of a-1/a
Asked by n.gobinda123 | 23 Aug, 2019, 08:31: AM
Expert Answer
a + 1/a = 17/4
We know that
(a - 1/a)2 = (a + 1/a)2 - 4
= (17/4)2 - 4
= 289/16 - 4
= 225/16
= (15/4)2
a - 1/a = 15/4
Answered by Sneha shidid | 23 Aug, 2019, 09:41: AM
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