anonymous
  • anonymous
Find, correct to 1 decimal place, the two smallest positive values of θ which satisfy each of the following equations. (a) sin θ° = 0.1 (b) sin θ° = -0.84 (c) sin θ° = -0.951
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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mathmale
  • mathmale
The first equation is easiest to work with, because the sine is positive. Ask yourself: "In which quadrants is the sine positive? How is the sine definited? It's the ratio of the _____ to the ________ .
anonymous
  • anonymous
first and second
anonymous
  • anonymous
I have zero idea on how to solve these sorts of problems. All I know is the unit circle, x is cosine, y is sine, and tangent is cosine over sine.

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anonymous
  • anonymous
I mean sine over cosine
mathmale
  • mathmale
How do you find the material to study this topic? Do you have a textbook? Are concepts explained on some web site to which you have access? Definitions of the sine, cosine and tangent functions are of critical importance in trig. I will use Equation Editor (below) to define them symbolically. Note that "opp" means opposite side, and that I will draw a triangle to illustrate this.
mathmale
  • mathmale
"adj" means "adjacent side." "hyp" stands for "hypotenuse".
mathmale
  • mathmale
\[\sin \theta = \frac{ opp }{ hyp}; \cos \theta = \frac{ adj }{ hyp }; \tan \theta=\frac{ opp }{ adj}\]
mathmale
  • mathmale
See these definitions before?

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