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mahserindortatlisi
 3 years ago
Show that the function f(x) = x4 + 3x + 1 has exactly one zero on the
interval [−2,−1].
mahserindortatlisi
 3 years ago
Show that the function f(x) = x4 + 3x + 1 has exactly one zero on the interval [−2,−1].

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mahserindortatlisi
 3 years ago
Best ResponseYou've already chosen the best response.0afterthat what can we proof is there a 0 point between domain

mahserindortatlisi
 3 years ago
Best ResponseYou've already chosen the best response.0how can sorry

mahserindortatlisi
 3 years ago
Best ResponseYou've already chosen the best response.0can you explain the solution by writing step by step? :) it's urgent :(

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1derivative is 4x^3 + 3 4x^3 + 3 < 0 for negative gradient x^3 < 3/4 x < (3/4)^(1/3) = approx 0.9 this is greater than 1 so the graph is decreasing over the period 2,1 find value of function atx = 2 and 1 f(2) = (2)^4 + 3(2) + 1 = 11 f(1) = 2 meaning it has crossed the xaxis at most once over the period

mahserindortatlisi
 3 years ago
Best ResponseYou've already chosen the best response.0thank u for solution crw238 :)
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