Question

Evaluate C - D.

Answer 1

I really need help.

Answer 2

subtract in each entry

Answer 3

c-d= 7-1 11-0
(-15-4) 3-(-11/2)
=(6) (11)
(-19) (17/2)
then cross multiply
=6x17/2 - 11x(-19)
=51+209
=260 ans

Answer 4

\[\left[
\begin{array}{ c c }
a & b\\
c & d
\end{array} \right]-\left[
\begin{array}{ c c }
e & f \\
g & h
\end{array} \right]=\left[
\begin{array}{ c c }
a-e & b-f\\
c-g & d-h
\end{array} \right]\]

Answer 5

I'm so confused.. Like, I honestly don't know how to do this. It's the last problem on my homework, could you please just give me the answer?