Answer:
- Given and explained below.
question 4
using sine rule:
question 5
using cosine rule:
HELP ME WITH THIS IM DESPERATE!
2 answers:
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Answer:
3
Step-by-step explanation:
Given the complex number z = a + bi then the absolute value is
| z | =
Given - 4 - i, then absolute value is
=
= =
= 3
Let's plug the values and see which couple satisfy the equation: since , if we plug the values from the first option
we have
which is correct.
If we plug the values from the second option we have
which is not correct
If we plug the values from the third option we have
which is not correct
If we plug the values from the fourth option we have
which is not correct
So, the answer is the first one.