juliannaweil juliannaweil

27-05-2017
Mathematics

contestada

Simplify cos2 Θ(1 + tan2 Θ). (2 points)
cos2 Θ + sin2 Θ
cos2 Θ
1
−1

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egoodrich1337 egoodrich1337

27-05-2017

cos^2Θ(1 + tan^2Θ)

Use the Pythagorean identity to simplify the parentheses:

cos^2Θ(sec^2Θ)

Use the inverse identities:

cos^2Θ(1/cos^2Θ)

Distribute:

cos^2Θ / cos^2Θ

Simplify:

1

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