Homework Help: Algebra 2

Posted by Katy on Monday, February 13, 2012 at 7:50pm.

Find the values of the six trigonometric functions for ∠A in standard position determined by the point (63, 280). Enter your answers as fractions.
sin A
cos A
tan A
csc A
sec A
cot A

Algebra 2 - Reiny, Monday, February 13, 2012 at 8:09pm
clearly your point is in the first quadrant, so all trig ratios will be positive.
from (63,280)
x = 63, y = 280
r^2 = x^2 + y^2 = 63^2+280^2 = 82930
r = √82930

You should know the trig ratios in terms of
x, y and r
e.g.
tan A = y/x = 280/63 = 40/9
sec A = r/x = √82930/63
etc.

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