4.1
Rewrite 30 degrees into radians
π/6 radians
Evaluate all 6 trig functions given t=5π/6
sin=1/2 cos=- √3/2 tan= -√3/ √3
csc=2 sec=-2 √3/3 cot=- √3
What is π/6 sine on the unit circle?
1/2
sin=? cos=? tan=?
sin= opp./hyp.
cos= adj./hyp.
tan=opp./adj.
What is the reciprocal of sine?
1/csc
Rewrite 120 degrees into radians
2π/3 radians
Evaluate all 6 trig functions given sinӨ=5/13
cosӨ=12/13 tanӨ=5/12 cscӨ=13/5 secӨ=13/12
cotӨ=12/5
On the unit circle, what is tangent at 45 degrees
1
sin2u + cos2u=?
1
Which functions equal even outcomes and which equal odd?
cosine, secant=even
others=odd
Rewrite π/9 in degree measure
20 degrees
Evaluate all 6 trig functions given cosӨ=5/6
sinӨ= √11/6 tanӨ= √11/5 secӨ=6/5
cscӨ= 6 √11/11 cotӨ=5 √11/11
On the unit circle, what is cosine at π/3?
1/2
tanu=?
sinu/cosu
six
Rewrite-7π/12 in degree measure
-105 degrees
6 trig functions of t=-π/3
sinӨ= - √3/2 cosӨ=1/2 tanӨ= - √3
cscӨ=-2 √3/3 secӨ=2 cotӨ= -√3/3
On the unit circle, what is tangent at 60 degrees?
√3
Arc Length=?
Ө=s/r or s=rӨ
How do you find complement and supplement?
comp. start with π/2
sup. start with π
Find the length of the given r=15in Ө=120
10π
Name all the trig functions
sin, cos, tan, csc, sec, cot
On the unit circle, what is the degrees at 7π/6?
210 degrees
Radians and degrees=?
degrees=πradians/180 degrees
radians=180degrees/πradians
What is 2+2?
4