Calendar My Media Gallery Students Faculty College Pages Messages ~ H If we start with the definition T =- dB ds . N and apply the Chain rule to rewrite dB/ds as: dB dB dt dB 1 ds dt ds it we get the formula: V 1 d.B T - N dt Use this formula to find the torsion of the helix: r(t) = (a cos(t))i + (a sin(t))j + btk, a, b > 0, a +b2 # 0 Show your work neatly and completely and upload it below: U B X2 x2