Question

If a – 1/q = 4, find the value of a2 + 1/a2

Answer 1

Step-by-step explanation:

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Answer 2

Answer: Given that,

a-1/a=4

Now,

Squaring on both sides....

We get,

(a-1/a)²=16

a²+1/a²-2(a)(1/a)=16

a²+1/a²-2=16

a²+1/a²=18

Step-by-step explanation:

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