[" Let "],[f(x)=ax^(7)+bx^(3)+cx-5],[" where "a,b,c" are constant.If "],[f(-7)=7" ,then "f(7)+20=]

If f(x)=ax^(7)+bx^(3)+cx-5, a, b, c are real constants, and f(-7)=7 , then the range of f(7)+17 cos x is

If f(x) = ax^(7)+bx^(3)+cx-5, a, b, c are real constants, and f(-7)=7, then the range of f (7) + 17 cos x is a)[-34,0] b)[0,34] c)[-34,34] d)None of these

If f(x)=ax^(7)+bx^(3)+cx-5,a,b,c are real constants,and f(-7)=7, then the range of f(7)+17cos x is [-34,0](b)[0,34][-34,34](d) none of these

if f(x)=ax^(7)+bx^(3)+cx-5,f(-7)=7 then f(7) is

If f(x)=a x^7+b x^3+c x-5,a , b , c are real constants, and f(-7)=7, then the range of f(7)+17cosx is (a) [-34 ,0] (b) [0, 34] [-34 ,34] (d) none of these

If f(x)=a x^7+b x^3+c x-5,a , b , c are real constants, and f(-7)=7, then the range of f(7)+17cosx is [-34 ,0] (b) [0, 34] [-34 ,34] (d) none of these

If f(x)=a x^7+b x^3+c x-5,a , b , c are real constants, and f(-7)=7, then the range of f(7)+17cosx is [-34 ,0] (b) [0, 34] [-34 ,34] (d) none of these