This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.
Doing so leads to the answer [3 -12 15 -21]
Side note: I'm assuming the matrix given to you has 1 row and 4 columns.
The answers are 6i/13 and -6i/13. The work it attached below
Answer:
cos(60) = 12
Step-by-step explanation:
I don't understand the question, but that is the only logical answer choice.
Answer:
I love Math anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation: