Question

find the number of zeroes of y power 2-1 and find their values​

Answer 1

Answer:

There exist two real roots

these are -√1 and √1.

Step-by-step explanation:

${y}^{2} - 1 = 0 \\ (y + \sqrt{1} )(y - \sqrt{1} ) = 0$

therefore,

y + √1 = 0. or. y - √1 = 0

y = -√1. or. y + = √1

y = ±√1