If 5x + 3y varies as x + 3y, prove that x^3 + y^3 varies as x^2 + xy^2?

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2007-03-08 23:12:40 · 2 answers · asked by Pranil 7 in Science & Mathematics ➔ Mathematics

u wud learn maths only on practice so keep trying u will find the proof

2007-03-08 23:34:05 · answer #1 · answered by Anonymous · 0⤊ 1⤋

From the first part you conclude that y varies as x.

So each of the quantities in the second part is just a multiple of x^3.

2007-03-09 13:23:08 · answer #2 · answered by Curt Monash 7 · 0⤊ 1⤋