00:01
Okay, so we know that x to one third is continuous function, okay, of minus one, one, okay? so x to the two third's power can be rewriting as x to the one third's power times x to the one third's power.
00:45
Therefore, the product of two continuous function is also continuous function.
01:24
And since the function 2x is continuous on minus 1 ,1, the interval minus 1 ,1, and x to the 2 3rd's power is also continuous on minus 1.
02:22
Therefore, the sum of the sum f of x.
02:30
Okay, we just write the sum 2x plus x 2, 2 ,000...