Question

prove that | x |² = x²​

Answer 1

Answer:

we use the definition of modulus function as $\sqrt{\\x^{2} }$

Step-by-step explanation:

we assume the equation | x |² = x²​ is false

on having square root on both sides

we get | x |= $\sqrt{\\x^{2} }$ as  FALSE statement  which contradicts the definition

hence proved