Math, asked by maheshprasadgmailcom, 8 months ago

if a/2+1/a^2=18 anda=0 find a-1/a

Answers

Answered by sandy1816

1

Step-by-step explanation:

a²+1/a²=18

(a+1/a)²-2=18

(a+1/a)²=20

(a-1/a)²+4=20

(a-1/a)²=16

a-1/a=±4

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