微积分公式
微積分公式
Dx sin x=cos x
cos x = -sin x
tan x = sec2 x
cot x = -csc2 x
sec x = sec x tan x
csc x = -csc x cot x
sin x dx = -cos x + C
cos x dx = sin x + C
tan x dx = ln |sec x | + C
cot x dx = ln |sin x | + C
sec x dx = ln |sec x ...
微積分公式
Dx sin x=cos x
cos x = -sin x
tan x = sec2 x
cot x = -csc2 x
sec x = sec x tan x
csc x = -csc x cot x
sin x dx = -cos x + C
cos x dx = sin x + C
tan x dx = ln |sec x | + C
cot x dx = ln |sin x | + C
sec x dx = ln |sec x + tan x | + C
csc x dx = ln |csc x – cot x | + C
sin-1(-x) = -sin-1 x
cos-1(-x) = - cos-1 x
tan-1(-x) = -tan-1 x
cot-1(-x) = - cot-1 x
sec-1(-x) = - sec-1 x
csc-1(-x) = - csc-1 x
Dx sin-1 ( a
x )=
22
1
xa
cos-1 (
a
x )=
tan-1 (
a
x )= 22 xa
a
cot-1 (
a
x )=
sec-1 (
a
x )=
22 axx
a
csc-1 (x/a)=
sin-1 x dx = x sin-1 x+ 21 x +C
cos-1 x dx = x cos-1 x- 21 x +C
tan-1 x dx = x tan-1 x-½ln (1+x2)+C
cot-1 x dx = x cot-1 x+½ln (1+x2)+C
sec-1 x dx = x sec-1 x- ln |x+ 12 x |+C
csc-1 x dx = x csc-1 x+ ln |x+ 12 x |+C
sinh-1 (
a
x )= ln (x+ 22 xa ) xR
cosh-1 (
a
x )=ln (x+ 22 ax ) x≧1
tanh-1 (
a
x )=
a2
1 ln (
xa
xa
) |x| <1
coth-1 (
a
x )=
a2
1 ln (
ax
ax
) |x| >1
sech (-1
a
x )=ln(
x
1 + 2
21
x
x )0≦x≦1
)=ln(
x
1 + 2
21
x
xcsch-1 (
a
x ) |x| >0
Dx sinh x = cosh x
cosh x = sinh x
anh x
oth x
sinh x dx = cosh x + C
cosh x dx = sinh x + C
C tanh x = sech2 x
coth x = -csch2 x
sech x = -sech x t
csch x = -csch x c
tanh x dx = ln | cosh x |+
coth x dx = ln | sinh x | + C
sech x dx = -2tan-1 (e-x) + C
csch x dx = 2 ln |
xe 21
xe1 | + C
v
duv = uv = udv + vdu
du
osh2θ
duv = ud + vdu
→ udv = uv - v
cos2θ-sin2θ=cos2θ
cos2θ+ sin2θ=1
cosh2θ-sinh2θ=1
cosh2θ+sinh2θ=c
D sinhx -1( a
x )=
22
1
xa
cosh-1(
a
x )=
22
1
ax
tanh-1(
a
x )= 22 xa
a
coth-1(
a
x )=
sech-1(
a
x )=
2x2ax
csch-1(x/a)=
a
2x
a
2ax
h-1 x- sinh-1 x dx = x sin 2x + 1 C
cosh-1 x dx = x cosh-1 x- 12 x + C
tanh-1 x dx = x tanh-1 x+ ½ ln | 1-x2|+ C
coth-1 x dx = x coth-1 x- ½ ln | 1-x2|+ C
sech-1 x dx = x sech-1 x- sin-1 x + C
csch-1 x dx = x csch-1 x+ sinh-1 x + C
3θ
→sin3θ= ¼ (3sinθ-sin3θ)
→cos3θ=¼(3cosθ+cos3θ)
sin x =
sin 3θ=3sinθ-4sin
cos3θ=4cos3θ-3cosθ
j
ee jxjx
2
cos x =
2
jxjx ee
sinh x =
2
xx ee cosh x =
2
xx ee
正弦定理: sin
a = sin
b = sin
c =2R
餘弦定理: a2=b2+c2-2bc cosα
b2=a2+c2-2ac cosβ
c2=a2+b2-2ab cosγ
γ
a
b
c
αβ
R
sin (α β n α o± )=si cos β ± c s β
co c cos β n α sin
2 sin α cos β = sin (α+β) + s )
2 n sin (α+β - si
2 cos cos α-β + c
2 cos (α-β) - co
sin α β =
sin α - sin β =
cos α β =
(α+β) sin
α sin + sin
s (α±β)= os α i s β
in (α-β + cos
cos α si β = )
α β = cos ( )
n (α-β) cos α - cos β =
os (α+β) tan (α±β)=
sin α sin β = s (α+β)
2 sin ½(α+β) cos ½(α-β)
2 cos ½(α+β) sin ½(α-β)
2 cos ½(α+β) cos ½(α-β)
-2 sin ½ ½(α-β)
tantan
tantan , cot (α±β)=
cotcot
cot
cot
ex=1+x+
!2
2x +
!3
3x +…+
!n
xn + …
sin x = x-
!3
3x +
!5
5x -
!7
7x +…+
)!12(
)1( 12
n
x nn + …
cos x = 1-
!2
2x +
!4
4x -
!6
6x +…+
)!2(
)1( 2
n
x nn + …
ln (1+x) = x-
2
2x +
3
3x -
4
4x +…+
)!1(
)1( 1
n
xnn + …
tan x = x--1
3
+
3x
5
-
5x
7
7x +…+
)12( n
)1( xn 12 n + …
(1+x)r =1+rx+
!2
)1( rr x2+
!3
x3+… -1
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