What is \(\sin\left(\frac{\pi}{2}+\theta\right)\) equal to?
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Answer and explanation
Correct answer: \(\cos \theta\)
With \(\frac{\pi}{2}\), \(\sin \theta\) changes to its cofunction \(\cos \theta\). The sign remains positive in the second quadrant.
Frequently asked questions
What is the correct answer to this question?
\(\cos \theta\)
Why is this the correct answer?
With \(\frac{\pi}{2}\), \(\sin \theta\) changes to its cofunction \(\cos \theta\). The sign remains positive in the second quadrant.
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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