ID and Dx Flashcards
1
Q
d/dx (cosx)
A
= -sinx
2
Q
d/dx (tanx)
A
= sec^2(x)
3
Q
d/dx (secx)
A
= (secx)(tanx)
4
Q
d/dx (cotx)
A
= -csc^2(x)
5
Q
d/dx (cscx)
A
= -(cscx)(cotx)
6
Q
d/dx (arcsinx)
A
= 1/√(1-x^2)
7
Q
d/dx (arccosx)
A
= -1/√(1-x^2)
8
Q
d/dx (arctanx)
A
= 1/(1+x^2)
9
Q
d/dx (arccotx)
A
= -1/(1+x^2)
10
Q
cos^2(x)+sin^2(x)
A
1
11
Q
1+tan^2(x)
A
sec^2(x)
12
Q
cos(A+B)
A
cosAcosB-sinAsinB
13
Q
sin(A+B)
A
sinAcosB+sinBcosA
14
Q
sin2x
A
2sin(x)cos(x)
15
Q
cos^2(x)
A
(1+cos2x)/2
