bethrlopie bethrlopie
  • 04-04-2017
  • Mathematics
contestada

cos theta=4/9
state the five trigonometric ratios for each acute angle theta.

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Аноним Аноним
  • 04-04-2017
Draw a TRIANGLE.
             
                
              /  |
            /    |
    9    /      |
        /        |
      /          |   √65
    /            |
  /              |
/   θ           |
-----------------
    4 

P.S. I used Pythagorean Theorem for remaining side.

cos θ = 4/9
sin θ = √65/9
tan θ = √65/4
csc θ = 9/√65
sec θ = 9/4
cot θ = 4/√65
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