Основні тригонометричні тотожності Flashcards by Unknown Unknown | Brainscape

Q

sin2a+cos2a=

A

1

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Q

sina/cosa=

A

tga

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Q

cosa/sina

A

ctga

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Q

tg*ctg

A

=1

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Q

1/ctg

A

tg

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Q

ctg=

A

1/tga

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Q

1+tg2a=

A

1/cos2a

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Q

1+ctg2a=

A

1/sin2a

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Q

1+1/tg2a=

A

1/sin2a

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Q

1+1/ctg2a

A

1/cos2a

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