1.

Let a function y = y(x) be defined parametrically by x = 2t -|t| , y = t^2 + t|t| then

Answer»

`y'(x) = 4X` when `x gt -`
`y'(x) = 0` when `x lt 0`
`y'(x)` does not exist at x= 0
`y'(x) = 2` for all x

ANSWER :A::B


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