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baybay88
 2 years ago
Help! what are the ratios for sin X and cos X?
drawing below
baybay88
 2 years ago
Help! what are the ratios for sin X and cos X? drawing below

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amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1sin = over/hyp cos = next.to/hyp

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0so how do i write it with those numbers?

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1memory tricks may be: theres a SIGN, OVER there COSy up NEXT.TO someone you like

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0haha thats good!! i forgot which one was the hyp though...

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1370976658919:dw

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1hyp is the side that is neither over or next.to :) its the slanted part of the rt tri

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0oh so then to 5\[5 \over 119?\]

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0sorry math isnt the best for me lol

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1if we observe the X angle: over = sqrt(119) next.to = 5 that leaves hyp=12 sin X = over/hyp cos X = next.to/hyp its just a matter of filling in the proper parts

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0ok so then it would be 119/12 for sin and 5/12 for cos?

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1yes, but dont forget to notate that 119 properly: \(\sqrt{119}\)

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0ok so if i did it write then the sin would be 130.904?

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0and cos would be 0.416?

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1your cosine is fine you hit some wrong buttons on your calculator for the sin tho

baybay88
 2 years ago
Best ResponseYou've already chosen the best response.0oh really?oh yeah I did that wrong. Thank you!!

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.1a good dbl chk is that sin^2 + cos^2 = 1 sin^2 + (5/12)^2 = 1 sin^2 + 25/144 = 1 sin^2 = 1  25/144 sin^2 = 119/144 sin = sqrt(119)/12 but then youd still ahv eto hit the right buttons :)
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