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A student simplified the expression 2-cos²θ to 1-sin²θ . What error did the student make? What is the correct simplified expression?
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2 votes
A student simplified the expression 2-cos²θ to 1-sin²θ . What error did the student make? What is the correct simplified expression?

User Tenedor
by
8.5k points

1 Answer

4 votes

Answer: 1+sinθ^2

Explanation:


2-cos^(2)θ

= 2-(1-sinθ^2)

=2-1+sinθ^2

=1+sinθ^2

User JesseEarley
by
7.9k points
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