向量减法运算及其几何意义
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/19 03:45:58
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解题思路: 考查平面向量的加法,减法法则:三角形法则;再根据三角形的性质,两边之和大于第三边,两边之差小于第三边,证得结果。
解题过程:
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最终答案:略
解题过程:
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最终答案:略