Hệ thức cơ bản Flashcards by Võ Nguyễn Chí Thành | Brainscape

Q

sin²a+cos²a

A

1

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Q

1+tan²a

A

1/cos²a

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Q

sin³a-cos³a

A

(sina-cosa)(1+sina*cosa)

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Q

sin⁶a+cos⁶a

A

1-3sin²a*cos²a

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Q

sin⁶a-cos⁶a

A

-cos2a(1-sin²a*cos²a)

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Q

sin⁴a-cos⁴a

A

sin²a-cos²a

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Q

sin⁴a-cos⁴a

A

-cos2a

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Q

sin⁴a+cos⁴a

A

1-2sin²a*cos²a

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Q

1+cot²a

A

1/sin²a

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Q

sin³a+cos³a

A

(sina+cosa)(1-sina*cosa)

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