Find a+b,2a+3b, iai, and ia-bi. a[5, -12], b=[-3, -6]

1) 2) 3) 13, 4) 10.

Step-by-step explanation:

Since we have given that

So, we need to find :

1) a + b is given by

2) 2a+3b is given by

3) |a| is given by

4) |a-b| is given by

Hence, 1) 2) 3) 13, 4) 10.

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step-by-step explanation:

.6 is 1/2 of 12

the answer is actually d. i just took the test