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Alfred565
 one year ago
What is the sine of a 30° angle?
Alfred565
 one year ago
What is the sine of a 30° angle?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you need a nice trig cheat sheet

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0find the coordinates of the point corresponding to the 30 degree angle the first coordinate is cosine, the second coordinate is sine

Alfred565
 one year ago
Best ResponseYou've already chosen the best response.0@satellite73 and why is the 30 and 60 the same? is it 1/2 or 2/3?

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2my professor told me that to find sin30 we have to look at the 30 degree angle.. and use opposite/ hypotenuse

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434591073159:dw this is a standard 30 degree and 60 degree triangle

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2so to look for sin 30 I have to go opposite/hypotenuse so it's like drawing a line from the 1 first and then to the 2 dw:1434591150637:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2sin x = opposite/hypotenuse so my opposite value is 1 and my hypotenuse is 2.. so sin 30 = 1/2

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2but to go for 60 degrees I have to START at the 60 degree angle.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434591242435:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434591275310:dw so opposite/hypotenuse for 60 degrees is \[\frac{\sqrt{3}}{2}\]

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2the value for triangle is the same but you have to go in a different direction if you want sin 60

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Just a head up. I would learn the Unit circle. It will come in handy later on in your studies.

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2luckily for 45 degrees it's easier

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2because 45 degrees is everywhere... and the values are the same.. except tan 45 is always 1

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2dw:1434591444328:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.2you need to memorize these triangles... they are super useful for calculus....especially when you're not allowed to use a calculator in exams.
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