Cộng lượng giác phase 1 Flashcards by Pham Binh | Brainscape

Q

sin( a + b)

A

sina.cosb + cosa.sinb

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Q

sin ( a - b )

A

sina.cosb - cosa.sinb

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Q

cos ( a + b )

A

cosa.cosb - sina.sinb

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Q

cos ( a -b )

A

cosa.cosb + sina. sinb

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Q

tan ( a + b )

A

tan a - tan b / 1 + tana.tanb

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Q

tan ( a - b )

A

tan a - tan b / 1 + tana.tanb

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Q

Sin2a

A

2 sina.cosa

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Q

A

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