Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
contangent
|
1/tan x
|
|
|
secant x
|
1/cos x
|
|
|
cosecant x
|
1/sin x
|
|
|
PI = x°
|
180°
|
|
|
degrees→radians
|
*PI/180
|
|
|
radians→degrees
|
*180/PI
|
|
|
tanX =
|
sinX/cosX
|
|
|
sin²x + cos²x =
|
1
|
|
|
sin(A+B)
|
sinAcosB+cosAsinB
|
|
|
sin(A-B)
|
sinAcosB-cosAsinB
|
|
|
cos(A+B)
|
cosAcosB-sinAsinB
|
|
|
cos(A-B)
|
cosAcosB+sinAsinB
|
|
|
tan(A+B)
|
tanA+tanB/1-tanAtanB
|
|
|
tan(A-B)
|
tanA-tanB/1+tanAtanB
|
|
|
Law of Sines
|
a/sinA=b/sinB=c/sinC
|
|
|
Law of Cosines
|
a² = b² + c² - 2bc(cos A)
|
|
|
1 feet = x inch
|
12 inch
|
|
|
1 lb = x ounces
|
16 ounces
|
|
|
1 yard = x feet
|
3 feet
|
|
|
sin(90°-θ)＝
|
cosθ
|
|
|
cos(90°-θ)＝
|
sinθ
|
|
|
sin(180°-θ)＝
|
sinθ
|
|
|
cos(180°-θ)＝
|
-cosθ
|
|
|
(a+b)³
|
a³+3a²b+3ab²+b³
|
|
|
(a-b)³
|
a³-3a²b+3ab²-b³
|
|
|
f-¹(x)
|
Change x and y.
Solve y. |
|
|
y=log<a>x →exponential form
|
a^y=x
|
|
|
a^y=x →logarhithmic form
|
y=log<a>x
|
|
|
log<a>x + log<a>y =
|
log<a>xy
|
|
|
log<a>x<p>=
|
p*log<a>x
|
|
|
log<a>x - log<a>y =
|
log<a>x/y
|
|
|
sqrtn
|
n^1/2
|
|
|
y'
|
yの傾き
|
|
|
(p,q)を求めるには
|
y=a(x-p)²+q
|
|
|
ａ³＋ｂ³
|
(ａ+ｂ)(ａ²-ａｂ＋ｂ²)
|
|
|
ａ³-ｂ³
|
(ａ-ｂ)(ａ²+ａｂ＋ｂ²)
|
|
|
(a+b+c)²=
|
a²+b²+c²+2ab+2bc+2ca
|
|
|
|
|
|
(ｘ－α)(ｘ－β)＞０
|
ｘ＜α または β＜ｘ
|
|
|
(ｘ－α)(ｘ－β)＜０
|
α＜ｘ＜β
|
|
|
絶対値記号の外し方
｜ｘ｜＜ａ |
－ａ＜ｘ＜ａ
|
|
|
絶対値記号の外し方
｜ｘ｜≧ａ |
ｘ≦－ａ または ａ≦ｘ
|
|
|
解の公式
|
|
|
|
判別式D=
|
b²-4ac
|
