Solving 2 unknown variables with 2 equations

  • Thread starter sami23
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  • #1
sami23
76
1

Homework Statement


Find F and [tex]\theta[/tex]

Homework Equations


Fcos[tex]\theta[/tex] = 250
Fsin[tex]\theta[/tex] = 420

The Attempt at a Solution



I can't remember how to solve 2 equations with 2 unknowns and trig functions... How do I start?
 

Answers and Replies

  • #2
ystael
352
0
What trigonometric identities do you know that connect the sine and cosine functions?
 
  • #3
sami23
76
1
sin2([tex]\theta[/tex]) + cos2([tex]\theta[/tex]) = 1
 

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