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Find the number of solutions of the following pair of linear equations :2x + 3y + 17 = 04x + 6x + 15 = 0 |
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Answer» Answer: 4X + 6y + 15 = 0 ----------(ii) and, 2x+3y+17=0 ---------------(i) it can be seen of the cofficients of equations. coe.of X of 1st coe. of y of 1st cons. term of 1st -------------------- = --------------------- ≠ ------------------coe. of x of 2nd coff. of y of 2nd cons. term of 2 => 2/4=3/6≠17/15 => 1/2=1/2≠17/15 And this CONDITION for no SOLUTIONS or two parallel lines. So, the answer is no solution exist. |
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