Double Angle Formula Flashcards

1
Q

Using double angles:

2sinθcosθ = ?

A

= sin(2θ)

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2
Q

Using double angles:

sin(2θ) = ?

A

= 2sinθcosθ

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3
Q

Using double angles:

cos(2θ) = ?

A

= cos2θ- sin2θ

= 2cos2θ-1

= 1- sin2θ

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4
Q

Using double angles:

1-2sin2θ = ?

A

=cos(2θ)

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5
Q

Using double angles:

2cos2θ-1 = ?

A

= cos(2θ)

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6
Q

Using double angles:

cos2θ-sin2θ = ?

A

= cos(2θ)

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7
Q

Using double angles:

A

= tan(2θ)

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8
Q

Using double angles:

tan(2θ) = ?

A
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