152021年高考数学真题分类汇编专题05平面向量一单选题12021浙江已知非零向量119886119887119888则119886119888119887119888是119886119887的A充分不必要条件B必要不充分条件C充分必要条件D既不充分又不必要条件二多选题22021新高考已知O为坐标原点点P1cossinP2cossinP3cossinA10则A11987411987511198741198752B11986011987511198601198752C119874119860119874119875311987411987511198741198752D119874119860119874119875111987411987521198741198753三填空题32021全国甲卷已知向量a31b10119888119886119896119887若ac则k42021全国甲卷若向量119886119887满足119886311988611988751198861198871则11988752021全国乙卷已知向量11988613b34若11988611988711988