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znimon
 3 years ago
Evaluate the expression without using a calculator.
znimon
 3 years ago
Evaluate the expression without using a calculator.

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znimon
 3 years ago
Best ResponseYou've already chosen the best response.0\[\sin (\pi/3) + \cos (\pi/3)\]

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0An entry level explanation would be useful.

myko
 3 years ago
Best ResponseYou've already chosen the best response.1Pi/3=60º as is well known cos60º=1/2 and sin60º=sqrt3/2

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0Should I have converted them to degrees then?

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0allow me to disagree with @myko this question has nothing to do with degrees. forget degrees it has to do with numbers find the sine and cosine from the coordinates on the unit circle

myko
 3 years ago
Best ResponseYou've already chosen the best response.1if it is more clear for you, then yes, if not just stay with radians

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0do not start a trig problem by converting numbers to degrees, it is a bad habit and will mess you up later if you are working with numbers, stick with numbers

myko
 3 years ago
Best ResponseYou've already chosen the best response.1degrees are just, sometimes, more evident to place a apoint in the circle. But I agree with @satellite73 that it is more strait with rad

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0sine and cosine are functions of numbers, not angles. they correspond to the functions of angles if the angles are measured in radians

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0alright that seems to make sense. Will you walk me through what you mean by "find the sine and cosine from the coordinates on the unit circle?"

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0look at the last page of the cheat sheet i sent locate the point on the unit circle corresponding to \(\frac{\pi}{3}\) 2x ^{5}+x ^{3}7x+14

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0corresponding to \(\frac{\pi}{3}\)

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0alright I see an ordered pair that looks suspiciously like sin and cos that you mentioned earlier

satellite73
 3 years ago
Best ResponseYou've already chosen the best response.0you should see the ordered pair \((\frac{1}{2},\frac{\sqrt{3}}{2})\) the first coordinate is \(\cos(\frac{\pi}{3})\) and the second coordinate is \(\sin(\frac{\pi}{3})\)

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0So what if this is on a test and I'm not allowed the cheat sheet?

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0This one seems fairly easy now I know this forms a 60 30 90 triangle but what about something more irregular or do these always form 306090 or 454590 triangles?

znimon
 3 years ago
Best ResponseYou've already chosen the best response.0(The ones they ask me to solve without a calculator.)
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