Write the complex number in trigonometric form. Begin by sketching the graph to help find the argument 0. -2-21/3 2 cis 330° 4 cis 330° 4 cis 120° 4 cis 210° 4 cis 240°

Write the complex number 30(cos 2.3 + i sin 2.3) in rectangular form. If necessary, round to the nearest tenth.

Plot the complex number on the complex plane and write it in polar form and in exponential form. AImaginary axis 12- - 8 +9 i 10– Plot the complex number on the complex plane. Real axis Write the complex number -8 +9 i in polar form. Select the correct choice below 40 12 and fill in the answer box(es) within your choice. (Simplify your answer. Type an exact answer for r, using radicals as needed. Type any angle measures in radians, rounding to three decimal places as needed. Use angle measures greater than or equal to 0 and less than 2n.) -121-10 -8 -4 to O A. z= V145 (cos 2.297 + i sin 2.297 40 (sin + i sin) 42 B. Z= C. Z= cos + i cos O D. z= (sin + i cos) Write the complex number - 8+ 9 i in exponential form. i 2.297 z= /145 e (Simplify your answer. Type an exact answer for r, using radicals as needed. Type any angle measures in radians, rounding to three decimal places as needed. Use angle measures greater than or equal to 0 and less than 2n.)

Write the complex number in standard form. (Simplify your answer completely.) cis 210°