mada = mada
2mada+2mada=4mada
2mada + 2mada = 4mada - 9/2mada + 9/2mada
= √((4mada - 9/2mada)²) + 9/2mada
= √(16mada² - 2∙4mada∙(9/2mada) + (9/2mada)²) + 9/2mada
= √(16mada² - 36mada² + (9/2mada)²) + 9/2mada
= √(-20mada² + (9/2mada)²) + 9/2mada
= √(25mada² - 45mada² + (9/2mada)²) + 9/2mada
= √((5mada - 9/2mada)²) + 9/2mada
= 5mada - 9/2mada + 9/2mada
= 5mada.
So 5mada = 4mada
5mada-4mada =0
mada = 0
Hence mada is zero and doesn't exist .