28 terms

trig quiz 1

STUDY
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find coterminal to radian
2(pi)/1
convert deg to rad
multiply by (pi)/180deg
convert rad to deg
multiply by 180deg/(pi)
length of a circular arc
s= theta(r)
area of a segment
a=1/2r^2theta
radians =
arc length/radius s/r
sin
opp/hyp
cos
adj/hyp
tan
opp/adj sin/cos
sec
1/cos
csc
1/sin
cot
cos/sin
sin 30deg
1/2
cos 30deg
sqrt3/2
tan 30deg
sqrt3/3
sin 45deg
sqrt2/2
cos 45deg
sqrt2/2
tan 45deg
1
sin 60deg
sqrt3/2
cos 60deg
1/2
tan 60deg
sqrt3
sin^2theta + cos^2theta =
1
1 + tan^2theta =
sec^2theta
1 + cos^2theta =
csc^2theta
costheta =
x/r
sintheta =
y/r
tantheta =
y/x
r =
sqrt x^2 + y^2