Formulas Flashcards

1
Q

sin²α + cos²α = …

A

1

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2
Q

sin(90⁰ - α) = …

A

cos α

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3
Q

cos(90⁰ - α) = …

A

sin α

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4
Q

tg(90⁰ - α) = …

A

cotg α

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5
Q

cotg(90⁰ - α) = …

A

tg α

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6
Q

sin(90⁰ + α) = …

A

cos α

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7
Q

cos(90⁰ + α) = …

A

-sin α

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8
Q

tg(90⁰ + α) = …

A

-cotg α

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9
Q

cotg(90⁰ + α) = …

A

-tg α

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10
Q

sin(180⁰ - α) = …

A

sin α

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11
Q

cos(180⁰ - α) = …

A
  • cos α
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12
Q

tg(180⁰ - α) = …

A
  • tg α
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13
Q

cotg(180⁰ - α) = …

A
  • cotg α
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14
Q

tg α = …

A

sin α/cos α

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15
Q

cos α/sin α = …

A

cotg α

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16
Q

sin α/cos α = …

A

tg α

17
Q

cotg α = …

A

cos α/sin α

18
Q

tg α * cotg α= …

A

1