Question

if a-1/a=5,find the value of a²+1/a²​

Answer 1

Answer:

A - 1/a =5

take squaring both side

(a - 1/a )^2 = (5)^2

a^2 +1/a^2 -2.a.1/a =25

a^2+1/a^2 -2 =25

a^2+1/a^2 =27 (answer)

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Answer 2

Answer:

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