12-11-13

Homework for today: Given sin⊖= .31, cos⊖= .95, tan⊖=1.91
                                  Find cos⊖/sin⊖, find tan⊖, find ⊖, find cos⊖/sin and ⊖

Notes:

Finals week is approaching, young padawans. Remember the wise words of Master Yoda, and do not fear!

12/9/13

No homework today! *hysterical sobbing from students who love math*

A sine deals with a right angle triangle and is opposite over hypotenuse. 

Let's explore with triangles that have no right angles!

sinA = h/c, so c x sinA = h

sinC = h/a, so a x sinC = h

Law of sines (know this for next quiz!):

sinA/a = sinB/b = sinC/c

examples:

sin68°/b = sin37° x b/3

Find distance around the outside:

6/sin32° = x/sin88°

x = 11.3, so distance is 12 + 22.6

math 1050 december 9th 2013

hey lettuce review.