Question

if a-1/a=7 ,then the value of a²-1/a²is?​

Answer 1

Answer:

Step-by-step explanation:

a-1/a = 7

(a-1/a)^2 = 7^2

a^2 + 1/a^2 - 2 = 49

a^2 + 1/a^2 = 51

Answer 2

Answer:

51

Step-by-step explanation:

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