C= [12 0 3/2 1 -6 7 ] what is 4c? its a 2x3 matrix so 12 0 3/2 on top and 1 -6 7 on bottom. the answer is also supposed to be a matrix.

Step-by-step explanation:

4C implies that we multiply each element in C by the constant 4.

12*4 = 48

0*4 = 0

(3/2)*4 = 6

This will be the new elements on top

1*4 = 4

-6 * 4 = -24

7 * 4 = 28

This will be the new elements at the bottom. The required matrix 4C is thus;

The required matrix is:

Step-by-step explanation:

The matrix given is:

We need to find 4C which means we need to multiply the matrix C with 4. Every entry of matrix will be multiplied by 4.

Solving:

SO, the required matrix is:

10 b/c 5*2 =10

step-by-step explanation:

m∠a is 90°

m∠b is 40°