Problem solving for x

  • Thread starter john425
  • Start date
  • #1
21
0
I am having trouble solving for the two values
of (x) that are closest to zero.

-30 sin 3x = 1/10 cos 3x

Is there a formula I could use to make this easy?
 

Answers and Replies

  • #2
arildno
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Write this as an equation in tan(3x)..
 
  • #3
sin(x)/cos(x) = tan(x)

to see why this is true Draw a right triangle with hypotenuse 1 and an acute angle x, you can work the sides of the right triangle have lengths sin(x) and cos(x).
 
  • #4
21
0
Oh yea! I just forgot!

Thank you!
 

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