If 2 3 4 1 find the value of y 7 - JAMB Mathematics 2011 Question
If | 2 3 | = | 4 1 |. find the value of y. 7
A
-6
B
6
C
-12
D
12
Ask EduPadi AI...
Correct Option: A
(\begin{vmatrix} 2 & 3 \ 5 & 3x \end{vmatrix}) = (\begin{vmatrix} 4 & 1 \ 3 & 2x \end{vmatrix})
(2 x 3x) - (5 x 3) = (4 x 2x) - (3 x 1)
6x - 15 = 8x - 3
6x - 8x = 15 - 3
-2x = 12
x = (\frac{12}{-2})
= -6
Please share this, thanks:
#JAMB #JAMB
Add your answer
No responses