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Simplify cos 0 + cos0tan^20
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Simplify cos 0 + cos0tan^20

Simplify cos 0 + cos0tan^20-example-1
User Shaheen G
by
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1 Answer

4 votes

Answer:

sec theta

Explanation:

we have this as follows;

cos theta +cos theta tan^2 theta

= cos theta (1 + tan^2 theta)

Recall;

1 + tan^2 theta = sec^2 theta

= sec^2 theta * cos theta

Recall;

sec theta = 1/ cos theta

= 1/cos theta * cos theta * 1/cos theta

= 1/cos theta = sec theta

User Henry Crutcher
by
4.9k points
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