Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Chibereko cheCauchy chetsamba mbiri dzisingaperi chinotsanangurwa kunyange apo dzose dziri mbiri dzinopesana. Muchiitiko apo an = bn = (−1) n, mazwi echigadzirwa cheCauchy anopiwa nemari dzakaperera dzedhiagonal  Mubvunzo: Unoronga sei migove yechinhu cheCauchy chezvinyorwa zviviri zvisingagumi apo an = bn = (-1) n
zviyero zvedhiagonal finite