sydneybailey6699 sydneybailey6699
  • 03-10-2018
  • Mathematics
contestada

How do I factor trig functions?
I am stuck on how to factor out equations like 1+sinX-cos2x=0
I am confused on where to go from here to solve the equation. Pls help.

Respuesta :

MollieToliver MollieToliver
  • 03-10-2018

Use cos2x =1-2sin^2x

1+sinx- (1-2sin^2x) = 1+ sinx -1+2sin^2x

=sinx+2sin^2x=sinx(1+2sinx)

Therefore

Either sinx=0 or 1+ sin2x =0

X=npi or sin2x=-1

Sin2x=sin 3pi/2

2x= npi +(-1)^n3pi/2

x=npi/2 + (-1)^n 3pi/4

Answer Link

Otras preguntas

Can someone help me answer this question please.
Sara’s ice cream looks pretty normal. It is shaped like a cone topped with a half-sphere. The cone has a height of 9 in and a radius of 4 in. What is the approx
Please Help! Brainliest for the best! Thank You!
Learning Task 1: In your answer sheet, recall and write the characteristics of vocal and instrumental music of japanpasagot po please ​
Hailey bought a compact disk for $34. An instant rebate gave her a discount and she only had to pay $30.94 for the CD. What is the discount, as a percent, that
Someone pmo with some good anime to watch:)
Rewrite using direct object pronouns
Consider JKL below. Determine whether each equation is correct. Select correct or incorrect next to each question.
Help please. Have the correct answer also
Pls help me ‍♀️‍♀️‍♀️