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16-04-2022
Mathematics

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if a-1/a=5 then find the value of a square +1/asquare

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Аноним Аноним

16-04-2022

Answer:

3

Step-by-step explanation:

Calculating a

a - 1 / a = 5
a - 1 = 5a
4a = -1
a = -1/4

Substitute in the 2nd equation

a² + 1 / a²
(-1/4)² + 1 / (-1/4)²
1/2 + 1 / 1/2
3/2 / 1/2
3

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