Trigonometric Equations 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

sin^{2}x + cos^{2}x

A

1

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6
Q

(sinx)/(cosx)

A

tanx

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7
Q

sin(-a)

A

-sina

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8
Q

cos(-a)

A

cosa

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