Question

If a –1/a = 5, then the value of a² + 1/a² is

Answer 1

Step-by-step explanation:

take a-1/a =5

squaring on both sides

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

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

a^2+1/a^2=27 because 25+2=27

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