Question

3) x + y = 3 ; 3x - 2y - 4 = 0 ही एकसामयिक समीकरणे निश्चयक पद्धतीने सोडवण्यासाठी D ची किंमत किती?/ What is the value of D, for solving simultaneous equations x + y = 3 ; 3x - 2y - 4 = 0 by determinant method? * 5 1 -5 -1​

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

The value of D, for solving simultaneous equations x + y = 3 ; 3x - 2y - 4 = 0 by determinant method

• 5

• 1

• - 5

• - 1

EVALUATION

Here the given system of equations are

x + y = 3

3x - 2y - 4 = 0

Which can be rewritten as

x + y - 3 = 0

3x - 2y - 4 = 0

Hence the value of D

$\displaystyle = \begin{vmatrix} 1 & 1 \\ \\ 3& - 2 \end{vmatrix}$

$\sf{ = - 2 - 3}$

$= - 5$

FINAL ANSWER

Hence the correct option is - 5

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