Find z1z2. Express the answer in standard form.z1 = 4(cos 30° + i sin 30°)z2 = 5
A. -10 - 10i
B. 10
- 10i
C. 10 + 10i
D. -10
+ 10i
Answer: D
Mathematics
You might also like to view...
Solve the problem.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.
A. 67 B. 76 C. 65 D. 56
Mathematics
Determine whether the graph is the graph of a function.
A. Yes B. No
Mathematics
Determine which two functions are inverses of each other.f(x) = 7xg(x) = 
h(x) = 
A. g(x) and h(x) B. None C. f(x) and g(x) D. f(x) and h(x)
Mathematics
Follow the principles of estimation to find an approximate value.Estimate by rounding to the nearest ten for the divisor and the nearest million for the dividend.
A. 114,513.5 B. 104,103.182 C. 100,000 D. 90,909.0909
Mathematics