Solving 2 unknown variables with 2 equations

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SUMMARY

The discussion focuses on solving two equations with two unknowns, specifically the variables F and θ, using trigonometric functions. The equations provided are Fcos(θ) = 250 and Fsin(θ) = 420. The key trigonometric identity mentioned is sin²(θ) + cos²(θ) = 1, which is essential for relating the sine and cosine functions to solve for the unknowns. The solution involves using these equations and the identity to isolate and calculate the values of F and θ.

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  • Understanding of trigonometric functions and identities
  • Familiarity with solving systems of equations
  • Knowledge of basic algebraic manipulation
  • Ability to apply the Pythagorean identity in trigonometry
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  • Learn how to apply the Pythagorean identity in various contexts
  • Explore the use of inverse trigonometric functions to find angles
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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?
 
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What trigonometric identities do you know that connect the sine and cosine functions?
 
sin2([tex]\theta[/tex]) + cos2([tex]\theta[/tex]) = 1
 

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