Question

if x is a positive real number and x^2 =2 ,find x^3 x
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Answer 1

Solution:

if x is a positive real number and x^2 =2

=> x = √2 ----(1)

/* x is positive real number */

Now ,

x^3x

= (√2)^3√2

= [(√2)³]√2

= (2√2)^√2

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