Question

4(cos150+i sin150)

Answer 1

This is the polar form of a complex number. What is the question?

Answer 2

4 e^(150i)

Answer 3

the question is
write the complex number in rectangular form

Answer 4

\[a+ib=4\cos 150+i4\sin 150\]
\[4\cos 150=a\]
\[4\sin 150=b\]
\[4(\cos 150+i \sin 150)=-3.464+i2\]

Answer 5

finally got it too lol thankz

Answer 6

[square root of 7(cos 35 + i sin 35)]^6

Answer 7

write in standard form a+bi

Answer 8

cos150= cos(180-30)= -cos 30=-sqrt3/2
simimilarly sin150=sin30=1/2
noe try to solve urself

Answer 9

Using Demoivre's Theorem the expression becomes:\[(\sqrt{7})^{6}(\cos (6\times 35)+i \sin (6\times 35))\]

Answer 10

so here arguement is 30degrees or pi/6 radian now use euler's form n u'll get