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If P(1+alpha/sqrt2 ,2+ alpha/sqrt2) be a...

If `P(1+alpha/sqrt2 ,2+ alpha/sqrt2)` be any point on a line, then the range of values of `alpha` for which the point P lies between the parallel lines x+2y=1 and 2x+4y= 15 is

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CENGAGE PUBLICATION-STRAIGHT LINES-All Questions
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