What is (\sin^2 \theta-\cos^2 \theta) equal to?
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Answer and explanation
Correct answer: (-\cos 2\theta)
Because ( \cos 2\theta=\cos^2 \theta-\sin^2 \theta), the given form is (-\cos 2\theta). In exams read double angle identities in reverse too.
Frequently asked questions
What is the correct answer to this question?
(-\cos 2\theta)
Why is this the correct answer?
Because ( \cos 2\theta=\cos^2 \theta-\sin^2 \theta), the given form is (-\cos 2\theta). In exams read double angle identities in reverse too.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.
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