1.

If f(x)=ax^(2)+bx^(3)+cx -5 ( a, b, c are real constants and f(-7)=7, then the range of f(7)+17cos x is

Answer»

`[-34, 0]`
`[0, 34]`
`[-34, 34]`
`{-34, 34}`

ANSWER :A


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