Trigonometry Flashcards by Mohamed Bouya

Q

Radian ?

A

360 degrees = 2 pie radians

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Q

Unit circles radius

A

One

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Q

Trig Identiies

A

Sin²+cos²=1
Tan=sin/cos

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Q

X axis on unit circle

A

Cosine

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Q

Y axis of unit circle

A

Sin (x)

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Q

double angle formula: sine derivation

A

2(sinxcosx)

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Q

double angle formula cos derivation

A

cos^2-sin^2
2cos^2-1
1-2sin^2

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Q

double angle formula:tan derivation

A

1-tan^2/2tanx

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Q

1+ cot ^2

A

Cosec^2

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Q

1+tan^2

A

Sec^2

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