What is side a?
a^2=2^2 + 3^2 - 2*2*3*cos60°
=4 + 9 - (12*0.5)
=13-6
a^2=7
a=√7
200
K=1/2ab(sinC)
What is the formula for area of a SAS triangle?
200
The section I found the most difficult.
What is section 7.7, Graphs of Tangent and Inverse Functions?
300
$DOUBLE JEOPARDY$
1 over Sin
What is Cosecant?
300
1/4(√2 + √6)
What is the exact value of sin(7∏/12)?
sin(7∏/12)=sin(3∏/12 + 4∏/12)=sin(∏/4 + ∏/3)
=sin(∏/4)*cos(∏/3) + cos(∏/4)*sin(∏/3)
=√2/2*1/2 + √2/2*√3/2
=1/4(√2 + √6)
300
36.3° when a=4, b=3, c=6
What is m∠A?
cosA=(b^2+c^2-a^2)/2bc
cosA=(9+36-16)/2*3*6
cosA=29/36
A=cos-1(29/36)
A=36.3
300
1/2(a+b+c)
What is the "s" in Heron's formula equal to?
300
The quiz I aced.
What is the unit circle quiz?
400
1/2, when sinθ=√5/5 and cosθ=2√5/5
What is tanθ?
This is found by taking √5/5/2√5/5
This is equal to 1/2 because √5/5 is half as much as 2√5/5
400
√3/2
What is the exact value of sin80°*cos20° - cos80°*sin20°?
=sin(80-20)
=sin60°
=√3/2
400
A=125.10°, B=30.75°, C=24.15°, when a=8, b=5, c=4
What is the solved triangle?
64=41-40(cosA) 25=80-64(cosB)
23=-40(cosA) -59=-64(cosB)
-0.0575=cosA 0.859375=cosB
cos-1(-0.0575)= 125.10 cos-1(0.859375)=30.75
180-125.10-30.75=24.15