Mathematics - Vectors and Matrices
32. The system of equations
2x + 4y = 10,
5x + 10y = 25 has
- Option : D
- Explanation :
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33. For the following set of simulataneous equations:
1.5x - 0.5y = 2
4x + 2y + 3z = 9
7x+ y + 5z = 10
- Option : A
- Explanation : By solving the equations, we will get x=178/11 , y=49/11 and z= -237/11. So the answer is 'A
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- Option : B
- Explanation :
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is
- Option : B
- Explanation :
=5(20-30) - 3(10-18) + 2(5-6)
= -50 + 24 - 2
= -28
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