August 1, 2014

Homework Help: trigonometry (repost) Mathmate

Posted by Anon on Saturday, February 26, 2011 at 3:37am.

I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the books i have (it poorly explains the subject of trigonometry let alone logarithms and antilog). Your last explanation was very clear and i even understood Law of tangent a little better.

my question was:
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=3228'30".
give check

You helped me find angle A and B by using logarithms.
A=80 deg 26' 36"
B=67 deg 04' 55"
C=32 deg 28' 30"

a= 21.46
b= 46.28

and I used law of sine to find c.
this is my answer and i would appreciate if you correct me if I'm wrong.

sinA/a = sinC/c
sin 80.443 /21.46 = sin 32.475/c
21.46 (sin 32.475)/(sin 80.443)c
c= 11.68

okay now it says to give check.
okay i honestly don't know how or if the law of sin already covers the check part. I'd like your advice.
and thank you again . I honestly love it when i understand something i thought was so confusingly impossible to understand before.

Answer this Question

First Name:
School Subject:

Related Questions

trigonometry (MathMate) - MathMate i would really appreciate if you can show me...
trigonometry (repost) Mathmate - Use logarithms and the law of tangents to solve...
trigonometry - okay so i have this trigonometry problem were i HAVE to use ...
trigonometry - Use logarithms and the law of tangents to solve the triangle ABC...
english - I have to write a 1000 essay in which I must connect two books ...
Psychology - How have you used the scientific process (unsystematic observation...
Trigonometry - Use the properties of logarithms and trigonometric identities to ...
misc;culture - Finally... I never get a chance to ask my questions since y912f ...
English - 1. I have helped an old man to cross the street on a crosswalk. 2. I ...
Fibonacci Numbers - I posted the question several days ago and Mathmate helped ...