Math, asked by hussipoona8835, 1 year ago

If a+1/a=9 then a2+1\a2 will be

Answers

Answered by amitnrw

0

Answer:

79

Step-by-step explanation:

(a + 1/a ) = 9

Squaring both sides

a^2 + 1/a^2 + 2a*1/a = 9^2

a^2 + 1/a^2 +2 = 81

a^2 + 1/a^2 = 79

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