Trig formulas Flashcards

(11 cards)

1
Q

Addition Formula sin(A+B)?

A

sinAcosB + cosAsinB

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2
Q

Addition Formula cos(A+B)?

A

cosAcosB - sinAsinB

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3
Q

Addition Formula tan(A+B)?

A

[ tanA + tanB ] // [ 1 - tanA*tanB ]

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4
Q

Subtraction Formula sin(A+B)?

A

sinAcosB - cosAsinB

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5
Q

Subtraction Formula cos(A-B)?

A

cosAcosB + sinAsinB

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6
Q

Subtraction Formula tan(A-B)?

A

[ tanA - tanB ] // [ 1 + tanA*tanB ]

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7
Q

Double angle formulae sin(2A)?

A

2sinAcosA

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8
Q

Double angle formulae cos(2A)? Version 1

A

cos^2 (A) - sin^2 (A)

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9
Q

Double angle formulae cos(2A)? Version 2

A

2*cos^2 (A) - 1

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10
Q

Double angle formulae cos(2A)? Version 3

A

1 - 2*sin^2 (A)

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11
Q

Double angle formulae tan(2A)?

A

2*tanA // 1-tan^2 (A)

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