Math, asked by ruparupa1502, 10 months ago

if a^2+1/a^2= 18,find the values of a+1/a and a-1/a.

Answers

Answered by shashank2895

4

Answer:

a^2+1/a^2+2=18+2

a+1/a=root20

a^2+1/a^2-2=18-2

a-1/a=4

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