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考点1:平面向量的线性运算设题角度对向量的加减法和数乘的坐标表示及其几何意义进行考查.高考真题1(2013年高考湖南理科卷第6题)已知a,b是单位向量,a·b=0.若向量c满足|c-a-b|=1,则|c|的取值范围是A.
Test point 1: Plane vector calculation of the linear problem-solving angle of the vector addition and subtraction and the number of coordinate representation and its geometric significance of the test.Real 1 (2013 college entrance examination in Hunan Science Volume 6) is known a, b is The unit vector, a · b = 0. If the vector c satisfies | cab | = 1, the value of | c |