The number of values of x , where the function f(x)= x+ ( 2 x) attains its maximum, is
Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions
The number of values of \(\mathbf{x}\), where the function \(f(x)=\cos x+\cos (\sqrt{2} x)\) attains its maximum, is
- 0
- 1
- 2
- infinite
Answer
(B) 1
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