Let f (x) = a ^ x + B (a > 0) (a is not equal to 1) g (x) = 2x ^ 2-5x-k. if f (x) > m is r-constant for X, then f (x) > m is r-constant The range of M is

(1) The image of function f (x) passing through point (1,7) is substituted into function equation
a+b=7
When a > 0, a ^ x > 0, f (x) = a ^ x + b > b,
When f (x) > m is r constant for X, M0, G (1) 0
-k>0
-3-K0
Simultaneous upper three forms: - 3

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