Find [4(cos15° + isin15°)]^3 and express it in a + bi form.
1 answer:
Answer:
see explanation
Step-by-step explanation:
Using De Moivre's theorem
Given
[ 4(cos15° + isin15° ) ]³, then
= 4³ [ cos(3 × 15°) + isin(3 × 15°) ]
= 64 (cos45° + isin45° )
= 64 (
+
i )
= 64 (
(1 + i) )
= 32
(1 + i)
= 32
+ 32
i
You might be interested in
Answer:
its c
Step-by-step explanation:
Ive had this question before
please give me brainliest if this helps
Step-by-step explanation:
I think this is not clear question.
A: 10,500 dollars because 500 times 21 is 10,500
Answer:
B. is the answer
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
The answer is 14
Step-by-step explanation:
e=2
Substitute 2 in for e
8 + 3(2)
Solve
14