[計量] 二題ds，抱歉沒有題號

[krisis (fhoa f)]

what is the value of XY?

(1)Y=X +1
(2)Y=X^2 +1

ANS:E

我是選c，我算到 x=x^2 我就覺得算得出來~~

If Y is an integer and Y=|X|+X, is Y=0 ?
(1)X<0
(2)Y<1

ANS:D
我選a而以~
b我算不出來~

謝謝

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推 reznor:(1) x=x^2 => x = 0 or 1
推 reznor:(2) when x < 0 => y = 0  (a) get
→ reznor:   when x >= 0 => y = 2x & y >= 0, given y < 1 and is
→ reznor:    integer, y = 0.
推 dividi:ds除了要算的出來以外  答案要是唯一解  c的話有兩解故選e
→ krisis:謝謝~了解了~