Question

If x+1by x=4 find the value of x square+1by x square

Answer 1

Answer:

1. As x+1x=4 , squaring it we get.

2. x2+2×x×1x+(1x)2=16.

3. or x2+2+1x2=16.

4. and hence x2+1x2=16−2=14.

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