MAC 1114 Trigonometry
Section 8.2: Trigonometric Form of Complex Numbers
1) Graph each complex number:
a)
i43
b)
i1
c) 4i
2) Find the opposite and the conjugate of each complex number:
a)
i43
b)
i1
c) 4i
3) Find modulus and argument of each complex number:
a)
i43
b)
i1
c) 4i
4) Write each complex number in trigonometric form using degrees:
a)
i43
b)
i1
5) Write each complex number in trigonometric form using radians:
a)
i33
b)
i8
6) Write each complex number in standard form:
a)
)30sin30(cos4 i
b)
3
2
sin
3
2
cos8
i
c)
4
7
2
cis
1