How do you solve sinx+3=3sinx+3=3?

2 Answers
Sep 13, 2016

x = 0x=0

Explanation:

We have: sin(x) + 3 = 3sin(x)+3=3

First, let's subtract 33 from both sides of the equation:

=> sin(x) + 3 - 3 = 3 - 3sin(x)+33=33

=> sin(x) = 0sin(x)=0

Then, let's take the arcsinarcsin of both sides:

=> arcsin(sin(x)) = arcsin(0)arcsin(sin(x))=arcsin(0)

=> x = 0x=0

Sep 13, 2016

x = kpix=kπ

Explanation:

sin x + 3 = 3
sin x = 0
Unit circle -->
sin x = 0 --> x = 0, x = pix=π, and x = 2pix=2π
General answers:
x = kpix=kπ