Rahul invested in two mutual funds. The equations 5x + 3y = ₹15000 and 2x - y = ₹1600 represent his portfolio returns. What is D (the determinant of the coefficient matrix)?
Rahul invested in two mutual funds. The equations 5x + 3y = ₹15000 and 2x - y = ₹1600 represent his portfolio returns. What is D (the determinant of the coefficient matrix)?
- A. -11
- B. 11
- C. 1
- D. -1
Answer: A) -11
Explanation: D = |5 3; 2 -1| = (5)(-1) - (3)(2) = -5 - 6 = -11.
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