Question 1

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Estudieu la continuïtat de la funció f(x) definida a trossos:

begin mathsize 12px style bold f bold left parenthesis bold x bold right parenthesis bold equals open curly brackets table row cell begin bold style 9 times x minus 68 end style bold space bold space bold space bold s bold i bold space bold x bold less-than or slanted equal to begin bold style 4 end style end cell row cell begin bold style 6 times x squared plus 2 times x end style bold space bold space bold s bold i bold space bold x bold greater than begin bold style 4 end style end cell end table close end style


La funció està definida en x = 4?

begin mathsize 12px style bold lim with bold x bold rightwards arrow begin bold style 4 end style to the power of bold minus below bold space bold space bold equals end style   

begin mathsize 12px style bold lim with bold x bold rightwards arrow begin bold style 4 end style to the power of bold plus below bold space bold space bold equals end style  

La discontinuïtat de la funció



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