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1/csc(x)
Sin
1/sin(x)
csc
1/sec(x)
cos
1/cos(x)
sec
1/cot(x)
tan
1/tan(x)
cot
Even identities?
cos
Odd Indentities?
Sin and tan
sinĀ²x + cosĀ²x =
1
tanĀ²x + 1 =
secĀ²x
cotĀ²x + 1 =
cscĀ²x
sin(A + B)
sinAcosB + cosAsinB
Sin(A - B)
sinAcosB - cosAsinB
Cos (A + B)
cosAcosB - sinAsinB
Sin2x
2sinxcosx
Cos2x
cosĀ²x - sinĀ²x
cos2x (for sin)
1 - 2sinĀ²x
cos2x (for cos)
2cosĀ²x - 1
3-3cosĀ²x
3sinx
1+tanĀ²x
secĀ²x
1-sinĀ²x
cosĀ²x
1+cotĀ²x
cscĀ²x
cosĀ²x-1
-sinĀ²x
secĀ²x-tanĀ²x
1
1-sinĀ²x
cosĀ²x
sinĀ²x-1
-cosĀ²x
Restricted domain of tan^-1(x)
(-pie/2, pie/2)
Restricted domain of sin^-1(x)
[-1,1]
Restricted domain of cos^-1(x)
[0, pie]
root 1/4
+- 1/2
root 1/2
+- root2/2
root 3/4
+- root3/2
root 1/3
+- root3/3
Forumla for x-cord of parabola
-b/2a
6xĀ²-3xĀ³ (even, odd, or nether?)
neither
what kind of reflection? -g(x)
x axis
what kind of reflection? g(-x)
y axis
what kind of reflection? af(x)
vertical
what kind of reflection? f(bx)
horizontal
where is vertical asymptote? f(x) = x+1/(x+1)Ā²
x = -1
where is the hole? f(x) = (x+1)Ā²/x+1
x = -1
where do you find the zeros of a rational function?
numerator set to zero
where do you find the VA of a rational function?
denominator set to zero
what is the HA when f(x) = xĀ²+4x-11/xĀ³+5x+9
y = 0
what is the HA when f(x) = 5xĀ³-7x+1/xĀ²-9
y = 1
what is the HA when f(x) = 4xĀ³+7x/6xĀ³-8x+3
y = 2/3
what is the shape of concave up?
U shape
what is the shape of concave down?
n shape