SOLUTION: Express the complex number in trigonometric form.
-4
Would it be 4(cos 270° + i sin 270°)? Please Help!
Algebra.Com
Question 981146: Express the complex number in trigonometric form.
-4
Would it be 4(cos 270° + i sin 270°)? Please Help!
Answer by ikleyn(52814) (Show Source): You can put this solution on YOUR website!
Trigonometric form of the number -4 is
-4 = 4(cos(180°) + i*sin(180°)),
because cos(180°) = -1, sin(180°) = 0.
-------------------------------------------------------------
comment from student: Oh okay! So it would be: 4(cos 0° + i sin 0°)?
-------------------------------------------------------------
NO !!!
It is
-4 = 4(cos(180°) + i*sin(180°)).
RELATED QUESTIONS
Express the complex number in trigonometric form.
-4 (answered by MathLover1,Edwin McCravy)
express the complex number -2 sqrt2 + 2 sqrt2i in the trigonometric form r(cos theta +i... (answered by stanbon)
Write the complex number in the form a + bi.
4[cos (-135°) + i sin... (answered by Boreal)
Express the complex number in trigonometric form.
2 - 2i
Please... (answered by jim_thompson5910)
Express the complex number in trigonometric form.
-6i
PLEASE SHOW WORK SO I CAN... (answered by Edwin McCravy,Fombitz)
Express the complex number 6 in complex trigonometric... (answered by Alan3354)
Find two square roots for the following complex number. Leave your answers in... (answered by ikleyn)
Use the given information to determine the exact trigonometric value.
If cos(theta)=4/5... (answered by stanbon)
Express the complex number in trigonometric form.
-2
PLEASE SOMEONE HELP ME, I... (answered by Alan3354)