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Questions › JNU › JNU SIS 2021 › Q80
0 marksMathematics › Matrices, determinants and linear systems › Solving linear systemsModerateabout 1 min

JNU SIS 2021 Question 80: Matrices, determinants and linear systems

Suppose we have [3210][dzdy]=[21]dx\begin{bmatrix} 3 & 2 \\ 1 & 0 \end{bmatrix}\begin{bmatrix} dz \\ dy \end{bmatrix} = \begin{bmatrix} 2 \\ 1 \end{bmatrix} dx[31​20​][dzdy​]=[21​]dx

Then dz/dx is

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Plain-text version

Suppose we have [3 2; 1 0][dz; dy] = [2; 1] dx Then dz/dx is (A) 1 (B) 2 (C) 0 (D) 3

Matrices, determinants and linear systems has come up 102 times in 7 exams since 2006.

What this question tests

This question is on Solving linear systems, part of Matrices, determinants and linear systems in Mathematics.

Finding solutions of simultaneous linear equations by inversion, determinants or elimination.

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Question from the JNU SIS 2021 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.