Find all real numbers in the interval [0,2π) round to the nearest tenth? 3sin2x=sinx

1 Answer
Apr 17, 2018

x=0c,0.34c,πc,2.80c

Explanation:

Rearrange to get:
3sin2xsinx=0

sinx=1±126

sinx=1+16or116

sinx=26or06

sinx=13or0

x=sin1(0)=0,π0=0c,πc
or
x=sin1(13)=0.34,π0.34=0.34c,2.80c

x=0c,0.34c,πc,2.80c