Double-Angle and Half-Angle Identities — Unit test Answers

Find the quotient.a.c.b.d.

Find the cube roots of -8. Write the answer in a + bi form.a.-2; 1 + i; -1 - ic.-2; 1 + i; 1 - ib.2; -1 + i; 1 - id.-2; -1 + i; 1 - i

Express the complex number 6 in complex trigonometric form.a.6(cos 270 + i sin 270)c.6(cos 0 + i sin 0)b.6(cos 180 + i sin 180)d.6(cos 90 + i sin 90)

Use Demoivres Theorem to find .a.1024ic.-1024b.-1024id.1024

Express the complex number 8(cos30 + i sin30) in standard a + bi form. a. c. b. d. Please select the best answer from the choices provided

The complex number -5i has the complex trigonometric form of 5(cos 270o + isin 270o)

What is the product of z1 and z2 if z1 = 2(cos70° + i sin70°) and z2 = 4(cos200° + i sin200°)?a.6(cos270° + i sin270°)c.8(cos70° + i sin70°)b.8(cos14,000° + i sin14,000°)d.8(cos270° + i sin270°)

Use Demoivres Theorem to find .a.32 - 32ic.-32 + 32ib.-32id.32

Express the seventh roots of unity in standard form a + bi.a.1 + 0i1 - ic.1 + 0ib.1 + 0i0 - id.1 + 0i

Find the cube roots of 8i. Write the answer in a + bi form.a.2i; + i; - + ic.2i; - i; - - ib.-2i; + i; - + id.-2i; - i; - - i