Given Tangent, Find AngleDate: 7/2/96 at 19:43:18 From: Anonymous Subject: Find Angle Given Tangent If given: tan y=3n/4n How do I find the value of y? Date: 7/2/96 at 21:56:47 From: Doctor Robert Subject: Re: Find Angle Given Tangent WEll, first of all, if tan y = 3n/4n, then tan y = 3/4 = .75. One cannot really solve this algebraically, so we invent an inverse function called the arctan function. y = arctan .75, that is, y is the angle or number whose tangent is .75. If you have a calculator that has trig functions on it you can easily find the values. If you work in degrees, arctan .75=36.87 degrees. If you work in radians, arctan .75 = .6435 radians. Hope that this helps. -Doctor Robert, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994-2015 The Math Forum
http://mathforum.org/dr.math/