Half Angle Identities Flashcards

Formula are listed

1
Q

1) tan A / 2 = ?

A

+/- (sqrt(1 - cos A / 1 + cos A))

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2
Q

2) tan A / 2 = ?

A

sin A / 1 + cos A

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3
Q

3) tan A / 2 = ?

A

1 - cos A / sin A

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4
Q

sin A / 2 = ?

A

+/- (sqrt(1 - cos A / 2))

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5
Q

cos A / 2 = ?

A

+/- (sqrt(1 + cos A / 2))

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