Question

y^2+1/y^2 is not equal to​

Answer 1

Answer:

is not equal to zero

Step-by-step explanation:

square is not equal to zero

Answer 2

Answer:

(1) y^2 + 1 / y^2 = y + 1 / y^2 is true.

(2) (y + 1/y) ^2 = y^2 + 2y × 1/y + 1/y^2

= y^2 + 2 + 1/y^2

= y^2 + 1/y^2 + 2 ≠ y^2 + 1/y^2 is false.

(3) (y - 1/y) ^2 = y^2 - 2y × 1/y + 1/y^2 + 2

= y^2 - 2 + 1/y^2 + 2

= y^2 + 1/y^2 is true.

(4) (y + 1/y) ^2 - 2 = y^2 + 2y × 1/y + 1 + y^2 - 2

= y^2 + 2 + 1/y^2 - 2

= y^2 + 1/y^2 is true.

∴ Option B (y + 1/y) ^2 is the correct answer.

Step-by-step explanation:

@Genius