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Question
For equations 5x + 3y + 11 = 0 and 2x + 4y = −10 find D.
Options
14
− 14
26
− 26
Solution
14
Explanation:
Here, a1 = 5, b1 = 3
a2 = 2, b2 = 4
∴ D = `|(a_1, b_1),(a_2, b_2)| = |(5, 3),(2, 4)|`
= 20 − 6
= 14
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