p1 trig help Watch

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ThugzMansion7
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#1
Report Thread starter 14 years ago
#1
hi,

i've solved a quadratic for the sine function and have one of my values as -1.
Using the CAST quadrant system to calculate my answer (0\<x\<360) i cannot figure out where my values lie :confused:



someone please help!
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BloodyValentine
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-1=270 so its at the bottom on the vertical line dividing T and C
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ThugzMansion7
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Report Thread starter 14 years ago
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(Original post by BloodyValentine)
-1=270 so its at the bottom on the vertical line dividing T and C
ah yes i get you......360-90
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ThugzMansion7
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#4
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and if i was to have invCOS = 1

then my values are 0 and 360 rite?
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