Question
If 3y-3/y=18 then find the value of y²
+1/y²Solution
3y-3/y=18 3(y-1/y) =18 y-1/y=6 both side squaring… (y-1/y) ² = (6) ² y ² +1/y ² =36+2 y ² +1/y ² =38
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