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
K - 5 = 12. Solve the equation
1 answer:
You might be interested in
Answer:
Option 1 is correct.
Step-by-step explanation:
Given angle . we have to find the quadrant and the reference angle.
Angle given is
Hence, the angle is 110° lies in second quadrant.
Now reference angle, the smallest angle that you can make from the terminal side of an angle with x-axis.
which is
Hence, option 1 is correct.