Mathematics
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OpenStudy (anonymous):
How do I find the principal angle of 500 degrees?
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OpenStudy (amistre64):
divide it by 360 im sure
OpenStudy (anonymous):
by going out to look for it
OpenStudy (anonymous):
=)
OpenStudy (anonymous):
For example, the principal value of -90degrees is 270 degrees.
OpenStudy (amistre64):
500/360 = 50/36 = 25/18 = 1 with a remainder of 7
its 360/7 i think
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OpenStudy (anonymous):
thats strange, in the solutions paper. I get -220
OpenStudy (amistre64):
500
-360
-----
140
thatsa it
OpenStudy (anonymous):
In the solutions paper, the principal angle of 500degrees is -220degrees though
OpenStudy (amistre64):
whats the definition of a principal angle?
OpenStudy (anonymous):
the angle between 0degrees and 360degrees
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OpenStudy (anonymous):
so the principal angle of -90 is 270
OpenStudy (anonymous):
that makes sences, But im not sure how to do it with larger numbers like 500
OpenStudy (anonymous):
OpenStudy (anonymous):
Thats the example
OpenStudy (amistre64):
360 + principal angle = 500
principal angle = 500 - 360
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OpenStudy (amistre64):
might be a scalar for larger number tho but since 500 is less the twice 360 its a safe bet
OpenStudy (anonymous):
Ohh. but if 500-360 gives me 140degrees, why in the solution page, i get -220?
OpenStudy (anonymous):
How can I get -220 as a reult?
OpenStudy (amistre64):
im not all that concerned about a "solution" page
OpenStudy (anonymous):
ok, so the principal angle of 1250 is -190
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OpenStudy (anonymous):
how do i get that?
OpenStudy (amistre64):
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