Kaitlyn's Bloggggggg

In this blog, i will explain a little bit about each section we learned so far in chapter 10.

10-1
This section involves finding the exact values of a trigonomic function

Find the exact value of sin15
=sin(45-30)=sin45cos30-cos45sin30
=(squarerootof 2/2)(squarerootof 3/2)-(squarerootof 2/2)(1/2)
=squarerootof 6-squarerootof 2/4


10-2
This section is pretty much the same as 10-1, but it involves tan instead of sin and cos.

Simplify tan50+tan10/1-tan50tan10
=tan(50+10)
=tan60
=squarerootof 3


10-3
This section is kinda like chapter 8, but it has more formulas and is more complex.

Simplify 2sin30cos30
=sin2(30)
=sin60
=squarerootof 3/2


Chapter 10 is pretty easy for me, if you know all your formulas and your trig chart you can easily pass this chapter..even without a calculator(: