Trig identities Flashcards

1
Q

d/dx(cscx)

A

-cscxcotx

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2
Q

d/dx(secx)

A

secxtanx

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3
Q

d/dx(cotx)

A

-csc^2x

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4
Q

int(tanx)

A

ln(secx)+C

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5
Q

int(secx)

A

ln(secx+tanx)+C

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6
Q

int(cscx)

A

ln(cscx-cotx)+C

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7
Q

int(cotx)

A

ln(sinx)+C

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8
Q

sinAcosB

A

0.5(sin(A-B)+sin(A+B))

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9
Q

sinAsinB

A

0.5(cos(A-B)-cos(A+B))

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10
Q

cosAcosB

A

0.5(cos(A+B)+cos(A-B))

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11
Q

d/dx(arcsinx)

A

1/rad(1-x^2)

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12
Q

d/dx(arccosx)

A

-1/rad(1-x^2)

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13
Q

d/dx(arctanx)

A

1/(1+x^2)

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14
Q

d/dx(arccscx)

A

-1/xrad(x^2-1)

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15
Q

d/dx(arcsecx)

A

1/xrad(x^2-1)

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16
Q

d/dx(arccotx)

A

-1/(1+x^2)