Trigonometry, Maths Flashcards

1
Q

sec^2θ

A

1+tan^2θ

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2
Q

cosec^2θ

A

1+cot^2θ

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3
Q

sin2θ

A

2sinθcosθ

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4
Q

tan2θ

A

2tanθ / 1-tan^2θ

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4
Q

sin(θ+φ)

A

sinθcosφ+sinφcosθ

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5
Q

cos(θ+φ)

A

cosθcosφ-sinθsinφ

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6
Q

tan(θ+φ)

A

tanθ + tanφ / 1-tanθtanφ

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7
Q

cos2θ

A

cos^2θ - sin^2θ

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