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If the point (1, alpha) always remains i...

If the point `(1, alpha)` always remains in the interior of the triangle formed by the lines `y = x, y = 0 and x + y = 4,` then `alpha` lies in the interval

A

`(0,1)`

B

`[0,1]`

C

`[0,4]`

D

none of these

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The correct Answer is:
B
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