Question

If x minus 1 by x is equal to 21 by 10 find the value of x square plus 1 by x square

Answer 1

Given:  x-1\x=21\10

To find: x²+1\x²

Solution: (x-1\x)²=441\100

x²+1\x²-2=4.41

x²+1\x²=6.41

Hence proved

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Answer 2

Answer:

Michael Jackson

7