What is the quadratic formula?
Ms. Sara knows
16x = 1/64
-3/2
(6y3 + 13y2 - 10y - 24) / (y +2)
6y2 + y - 12
What does SOHCAHTOA stand for?
Sin = opp/hyp
Cos = adj/hyp
Tan = opp/adj
2 [ 4 5 6 ]
[8 10 12]
x2 - x - 20 = 0
x = -4, 5
log4 256
4
(x4 + 5x3 + 3x2 - 8x + 3) / (x + 3)
x3 + 2x2 - 3x + 1
What are the opposite of sine, cosine and tangent?
Sin = csc
Cos = sec
Tan = cot
[ 2 6 ] + [ 4 8 ]
[ 5 -2] [ -2 4 ]
[ 6 14 ]
[ 3 2 ]
x2 + 16x + 64 = 0
x = -8, -8
log4 n + log4 (n-4) = log4 5
5
y2 + 3y - 40/ 25 - y2
y+8/y+5
Find all 6 trig
(Ms. Sara will draw the picture)
Ms. Sara will tell the answer
[ 2 4 3 ]
[ 4 2 9 ] - [ 3 7 2 ]
Not possible
15x2 - 84x - 36 = 0
x = -2/5, 6
643n = 82n -3
-3/4
3y/2x3 + 5z/8xy2
12y3 + 5x2z/8x3y2
How do you know when to use Law of Sines and what is it?
Two sides and an angle opposite or any two angles and a side
Proportion of side and angle
[ 2 6 ]
3 [ 3 1 ]
[ -6 2 ]
[ 6 18 ]
[ 9 3 ]
[ -18 6 ]
-8x2 + 46x = 30
x = 5, 3/4
ln 2x = 6
201.7144
x-1/x2 - x - 6 - 4/5x+10
x + 7 / 5(x+2)(x-3)
How do you know when you use law of Cosine and what is it?
Two sides and their included angle or all three sides
a2 = b2 + c2 - 2bcCos A
3 [ 2 5 10 ] + -2[ 4 -2 6 ]
[-2 19 18]