maths
posted by corie .
find the missing value to the nearest hundredth Tan ___ = 73
I just don't get these!

maths preferably Steve 
corie
can someone help me?

maths 
Steve
just use your calculator for the arctan function. Or, go to
http://www.rapidtables.com/calc/math/Arctan_Calculator.htm
and enter 73 and get arctan(73) = 89.22°
so, tan(89.22°) = 73
just think of the trig functions as another set of functions and inverses
If I say x^2 = 4 you apply the inverse of ^2 to get x = √4 = 2
If √x = 4, apply the inverse to get x = 4^2
so, if you want sin(30) you get 1/2
If you want to find what angle has cos(x) = 1/2, apply arccos(1/2) = 60 
maths 
Damon
Well, I am not Steve but I do have a calculator.

maths 
Damon
Oh, never mind, Steve answered while I was looking for an online calculator :)

maths 
Corie
so the answer is 89.22? sorry I hope I don't sound dumb but I don't understand trig AT ALL.

maths 
Corie
thanks anyways Damon :) and thanks Steve

maths 
Steve
Think of a right triangle with the bottom leg 1 and the side leg 73. It is very tall and skinny. The base angle is very close to 90 degrees. If that angle is x, then tan(x) = 73.
Go back to basics and start looking at right triangles to see how the trig functions are defined. Whenever you're stuck on some trig idea, always try to see how it relates to a right triangle. Draw lots of them. Read articles online; there are lots of different approaches to show how they work.
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