Question
Download Solution PDFWhich of the following is an even function?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
An even function satisfies the condition: \(f(-x) = f(x)\).
An odd function satisfies: \(f(-x) = -f(x)\).
Checking the given functions:
1) sin(x): \(\sin(-x) = -\sin(x)\) → odd function
2) cos(x): \(\cos(-x) = \cos(x)\) → even function
3) tan(x): \(\tan(-x) = -\tan(x)\) → odd function
4) x3: \((-x)^3 = -x^3\) → odd function
Answer:
Hence, the correct option is 2
Last updated on May 30, 2025
-> The ISRO Technical Assistant recruitment 2025 notification has been released at the official website.
-> Candidates can apply for ISRO recruitment 2025 for Technical Assistant from June 4 to 18.
-> A total of 83 vacancies have been announced for the post of Technical Assistant.
-> The Selection process consists of a written test and a Skill test.
-> Candidates can also practice through ISRO Technical Assistant Electrical Test Series, ISRO Technical Assistant Electronics Test Series, and ISRO Technical Assistant Mechanical Test Series to improve their preparation and increase the chance of selection.