[color=#0000ff][b]Tasca1: [/b][br]Aquesta corba té continuïtat en el punt (1,1):[/color] [img]data:image/png;base64,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[/img]
[b][color=#0000ff]Tasca 2:[/color][/b] [br][color=#0000ff]Aquesta corba té continuïtat en el punt (0,0,-1): [/color][img]data:image/png;base64,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[/img]