Math, asked by anupamminj95, 2 months ago

If y²+1/y²=11 find the value of y-1/y

Answers

Answered by induu2345

7

Answer:

(y-1/y)2 = y2+ (1/y)2-2*y×1/y

(y-1/y)2 = 11-2

(y-1/y)2 = 9

y-1/y = 3

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