re-parametrize the quadratic Bezier curve [on hold]

I am looking to find the derivative of B(t), re-parametrize the quadratic bezier curve by the arc length and then calculate the frenet-referencial

B(t)=(1−t)آ²P0+2t(1−t)P1+tآ²P2B(t)=(1-t)آ²P_0+2t(1-t)P_1+tآ²P_2

Ps: Sorry for any mistake.

thanks for your time.

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