### Trigonometric Values

HEY! my time to subscribe! even though I'm kind of new to this and please bear with me people... ^O^

Where to start, where to start... hmm...

Today, we learned about

Here are some examples:

a) sin 80 degree --> to find the sin of eighty degree you need a scientific calculator or it will

Where to start, where to start... hmm...

Today, we learned about

**Trigonometric Values**Here are some examples:

a) sin 80 degree --> to find the sin of eighty degree you need a scientific calculator or it will

**never**work "remember set it to**degrees**". So you have to press**sin**, the 80 degree and press**equals**sign. and presto! there is your answer! and the answer is 0.98 oh and by the way read the questions carefully because they ask for the**nearest**whatever**place value**they like. and in this case, you have to put it in the nearest hundreth.But some people have different calculators like MaryAnn's she have to put

**sin(the number here)**she needs to put the**numbers in brackets first**, and then press the**equals**sign.***

oh and Mrs. Ingram gave us a chart of some

http://www.filelodge.com/files/hdd2/25578/chart.bmp just go here.... and just make it bigger so it's clearer. Cause somehow i can't upload it. there's some errors so yeah.

oh and Mrs. Ingram gave us a chart of some

**sin values**and**cosine values**http://www.filelodge.com/files/hdd2/25578/chart.bmp just go here.... and just make it bigger so it's clearer. Cause somehow i can't upload it. there's some errors so yeah.

***

oh and in number 2 we have to say if it is

**acute**or**obtuse**so to do that:a) sin angle A = o.50

so you have to use the 2nd function here.

So you press

**2nd function**then**sin**and then 0.50 and then you press the**equals**and you will get 30 degrees.So this an

*acute angle*.You can tell this because

**acute angle**is**less than 90 degree**and an**obtuse angle**is**more than 90 degree angles**.well i think this is all though cause it's all the same anyways, and the other ones are just looking for the angle. and you do that by using the

**2nd function key**and then press whatever in the

**3 laws**that they are asking to find.

HOMEWORK:

exercise 18: # 1-6 and 11-15

and the nest subscribe is!!!!

KIM D!!!

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