What type of function is (f(x)=\sin x\cos x)?
Answer and explanation
Correct answer: Odd function
Given \(f(x)=\sin x\cos x\). Therefore, \(f(-x)=\sin(-x)\cos(-x)=(-\sin x)(\cos x)=-\sin x\cos x=-f(x)\). Hence, the function is odd. For an even function, we would need \(f(-x)=f(x)\), which is not true here. Exam tip: \(\sin x\) is odd and \(\cos x\) is even; the product of an odd and an even function is odd.
Frequently asked questions
What is the correct answer to this question?
Odd function
Why is this the correct answer?
Given \(f(x)=\sin x\cos x\). Therefore, \(f(-x)=\sin(-x)\cos(-x)=(-\sin x)(\cos x)=-\sin x\cos x=-f(x)\). Hence, the function is odd. For an even function, we would need \(f(-x)=f(x)\), which is not true here. Exam tip: \(\sin x\) is odd and \(\cos x\) is even; the product of an odd and an even function is odd.
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.
