Question

FAST PROVE THAT 1 = -1 .

Answer 1

Answer:

Step-by-step explanation:

This Question is more for fun as Mathematically

1 ≠ - 1

Let

x² - x²  = x² - x²

=> x² - x²  = - x² + x²

Take x common on Left side & -x on right side

=> x(x - x) = -x(x - x)

Cancelling x - x from from both sides

=> x = - x

Dividing by x on both sides

=> 1 = - 1

QED

Proved

Mistake in the proof .

(x - x) = 0 hence can not be cancelled from both sides