Write the complex number in rectangular form.9(cos 180° + i sin 180°)
A. 9
B. -9
C. -9i
D. 9i
Answer: B
Mathematics
You might also like to view...
Round the number as indicated.9570 to the nearest ten-thousand
A. 100 B. 100,000 C. 1,000 D. 10,000
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Mathematics
Find the product.(x2 - 4y2)2
A. x4 + 16y4 B. x4 - 4x2y2 + 16y4 C. x4 - 8x2y2 + 16y4 D. x4 - 16y4
Mathematics
Solve for x using an equivalent exponential expression.log3 x = 2
A. 6 B. 8 C. 5 D. 9
Mathematics