If a and b are unit vectors then the vector detrned aV=(a*b)*(1/a+b) is collinear to the vector(A) a+b(B) b-a(C) 2a-b(D) a+2b 相关知识点: 试题来源: 解析 a*b=1011b1sin(9 SACO=C⋅A ∴v=e*(a+b)=n(a+b) hence(Ais ca llincent vetorofi ...
Let @ and b be two unit vectors such that the angle between them iSπ/(4) . If 0 is the angle between the vectors (@ + b) and (@ + 2b+ 2(@ × b)), then the value of 164 cos2 0 is equal to :Correct Answer A 90+27√2 B 45+18√2 c 90+3√2 D 54+90√2 ...
If two vectors→aand→bare such that|→a|=2,∣∣→b∣∣=1and→a.→b=1,then find rthe value of (3 vec a-5 vec b)dot'(2 vec a+7 vec b)'dot View Solution If|→a|=∣∣→b∣∣=∣∣→a+→b∣∣=1,then find the value of∣∣→a−→b∣∣. ...
If |bar(a) |=3 and |bar(b) | =4 The value of mu for which the vectors bar(a) +mubar(b) and bar(a) -mubar(b) are perpendicular
If x and y are unit vectors in and =1, then x and y are linearly independent.A.正确B.错误的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习
θis the angle between the vectors. |a|,|b|are the magnitude of the vectors. Answer and Explanation:1 Given: v=au1+bu2 We shall do the dot productu1: v⋅u1=au1⋅u1+bu2⋅u1 Recall, the dot... Learn more about this topic: ...
If {eq}T(t) {/eq}, {eq}N(t), B(t) {/eq} are the unit tangent vector, unit normal vector, and binormal vector, respectively, then {eq}T(t) \cdot (B(t) \cdot N(t)) = 1 {/eq}. a. True b. F...
1.(a)Using the dot product definition show that if u is another vector, then|u+v|≤|u|+|v|. (b)Show that||u|−|v||≤|u−v|. Dot Product of two vectors: Ifu→andv→are two vectors having an angleθbetween them, then...
Find two unit vectors orthogonal to both j- k and i+ j . Find two unit vectors that are orthogonal to both u = -7i + 3j + k and v = 2i + 4k. Find the two unit vectors orthogonal to both a = (4, 1, 1) and b = (-1, 4, 1). ...
apersonally identifiable financial information 个人可识别的财政信息 [translate] a12 Month PL F&B Detail-应去掉Fb 12月PL F&B细节应去掉fb [translate] avar, cov and cor compute the variance of x and the covariance or correlation of x and y if these are vectors. If x and y are matrices then...