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NARA [144]
3 years ago
6

HOW DO YOU FIND THE SINE, COSINE, AND TANGENT VALUES GIVEN A POINT ON A CIRCLE

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0
When the circle is centered at the origin and the angle of interest (α) is measured counterclockwise from the positive x-axis, the trig functions can be determined from the coordinates of the point (x, y) and the radius of the circle (r) (which can also be determined from the coordinates of the point).

The radius is
  r = √(x² +y²)

The trig functions are (remember SOH CAH TOA?)
  sin(α) = y/r
  cos(α) = x/r
  tan(α) = y/x

These ratios hold regardless of quadrant.
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How to solve for<br> LN and what are the variables
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Answer:

v See below. v

Step-by-step explanation:

LM = MN

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x = 12

LM = 11(12) - 21 = 132 - 21 = 111

MN = 8(12) + 15 = 96 + 15 = 111

LN = 111 + 111 = 222

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Step-by-step explanation:

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The Least Common Denominator of 1 1/4 and 3/8 is 8. Now we can change the fractions.

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Translate and solve: <br> The product of a number<br> and -8 is more than 64
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