For constant number a, consider the function f(x)=ax+cos2x+sinx+cosx o – InterviewSolution

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1.	For constant number a, consider the function f(x)=ax+cos2x+sinx+cosx on R such that f(u)<f(v) for u<v. If the range of a for any real number x is (mn,∞) where m,n∈N, then the minimum value of (m+n) is
Answer» For constant number $a,$ consider the function $f (x) = a x + cos 2 x + sin x + cos x$ on $R$ such that $f (u) < f (v)$ for $u < v .$ If the range of $a$ for any real number $x$ is $(\frac{m}{n}, \infty)$ where $m, n \in N,$ then the minimum value of $(m + n)$ is

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