Y13 trig idneitites Flashcards by ariana zam

Q

Sin(2a)

A

2sin(a)cos(a)

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Q

Cos(2a)

A

Cos^2(a)-sin^2(a)
2cos^2(a)-1
1-2cos^2(a)

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Q

Tan 2a

A

(2tan^2(a))/(1-tan^2(a))

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Q

Cosec

A

1/sin

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Q

Sec

A

1/cos

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Q

Cot

A

1/tan

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Q

A

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