Disprove, by finding a suitable counter example, the statement. `x^2 gt y^2` for all `x gt y`

Disprove , by ind a suitable counter example , the statement x^(2) gt y^(2) for all x gt y .

Show that tan x gt x for all x in [0, pi//2) .

Find counter examples to disprove the statements: Two triangle are congruent if all their corresponding angles are equal.

Find counter examples to disprove the following statements: Every rectangle is a square.

Find counter examples to disprove the following statements: For any integers x and y, sqrt(x^(2) + y^(2)) = x+y

Find counter examples to disprove the statements: A quadrilateral with all sides are equal in a square.

Select a suitable identity and find the following products:(a x^2 + b y^2 ) (a x^2 + b y^2 )

Find counter examples to disprove the statements: If n is a whole number, then 2n^2+11 is a prime.

Solve 3x+2y gt 6 graphically.