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Let f(x)=([a]^(2)-5[a]+4)x^(3)-(6{a}^(2)-5{a}+1)x-(tan x) xx sin xbe an even function for all x in R. Then the sum of all possible values of a is (where [.] and {.} denote gretest integer function and fractional part function, respectively ) |
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Answer» `(17)/(6)` |
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