if y^2+(1/y^2)=11 find the value of y-(1/y)
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Answer:
3 is the answer.
Step-by-step explanation:
y² +1/y² = 11
=>y² +1/y² - 2×y×1/y = 11 - 2
=> (y-1/y)² = 9
=> y - 1/y = 9
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