3 years ago

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

1 answer:

4 0

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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