Sunday, November 7, 2010

kaitlynnn's blogggg

In this blogg, i will go overr section 11-1 becausee i actually understood this lesson prettyy well. All you have to do is know yourr formulas and then your goodd.

Formulas!!(:
RECTANGULAR- x=rcos(theta)
y=rsin(theta)

POLAR- r=(squarerootof)x^2+y^2
tan(theta)=y/x

Examples:
Give the polar for coordinates (5,5)
---r=(squarerootof)5^2+5^2
---r=(squarerootof)25+25
---r=(squarerootof)50

---tan(theta)=5/5
---tan(theta)=1
---(theta)=tan^1(1)
---(theta)=45

This whole chapter has been pretty easyy for me, you just have to focus and know what you are doing. It also helps to practice a lot with it so that you will know all your formulas and will be able to do this quick and easyyy

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