Posted by **Matt** on Tuesday, October 25, 2011 at 11:39pm.

Which of the following are linear equations in x1, x2 and x3?

(a) x1 + 5x2 − (2^0.5)x3 =1

(b) x1 + 3x2 + x1.x3 = 2

(c) x1 = −7x2 + 3x3

(d) x1^−2 + x2 + 8x3 =5

(e) x1^3/5 − 2x2 + x3 = 4

(f) πx1 − (2^0.5)x2 + 13x3 = 7^1/3

- Math -
**Jai**, Wednesday, October 26, 2011 at 2:14am
a, c, f

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