PHYSICS (trig+diffren) Flashcards

1
Q

Sin(A+B)

A

SinA.CosB +CosA.SinB

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2
Q

Sin(A-B)

A

SinA.CosB-CosA.sinB

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3
Q

Cos(A+B)

A

CosA.CosB-SinA.SinB

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4
Q

Cos(A-B)

A

CosA.CosB+SinA.SinB

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5
Q

Tan(A+B)

A

TanA+TanB/ 1-TanATanB

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6
Q

Tan(A-B)

A

TanA-TanB/ 1+TanATanB

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7
Q

Sin2A

A

2SinACosA

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8
Q

Cos2A

A

1- 2Sin^2A

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9
Q

sinC+sinD

A

2sin(C+D)/2 cos(C-D)/2

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9
Q

sinC-sinD

A

2sin(C-D)/2 cos(C+D)/2

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10
Q

cosC−cosD

A

-2Sin(C+D)/2 Sin(C-D)/2

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11
Q

cosC+cosD

A

2Cos(C+D)/2 Cos(C-D)/2

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12
Q

(d/dx) (x^n)

A

( nx^{n-1}

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13
Q

d/dx (a)

A

0

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14
Q

de^x/dx

A

e^x

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15
Q

dsinx/dx

A

cosx

16
Q

dcosx/dx

A

-sinx

17
Q

d(tan x)/dx

A

sec^2x

18
Q

d(xy)

A

xdy+ydx

19
Q

d(x/y)

A

ydx-xdy/y^2

20
Q

m=3/4

A

θ=37 degree