一道微积分的题：已知一弧长为1.74米,弧高为0.074米,求铉长.请算一下结果,告诉我,谢谢.

已知一弧长为C=1.74米,弧高为H=0.074米,求弦长LRn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*RnR0=5R1=5.0978R2=5.1018R3=5.1018R=5.1018米SIN(180*C/(2*R*PI))=L/(2*R)L=2*R*SIN(180*C/(2*R*PI))=2*5...