CUET Mathematics 2022 4 Aug Shift 1Algebra > Easyr⃗=(i^+j^+k^)+λ(2i^−j^+k^)\vec{r} = (\hat{i} + \hat{j} + \hat{k}) + \lambda(2\hat{i} - \hat{j} + \hat{k})r=(i^+j^+k^)+λ(2i^−j^+k^)r⃗=(2i^−j^+k^)+λ(i^+j^+k^)\vec{r} = (2\hat{i} - \hat{j} + \hat{k}) + \lambda(\hat{i} + \hat{j} + \hat{k})r=(2i^−j^+k^)+λ(i^+j^+k^)r⃗=(−2i^+3j^+4k^)+λ(2i^−j^+k^)\vec{r} = (-2\hat{i} + 3\hat{j} + 4\hat{k}) + \lambda(2\hat{i} - \hat{j} + \hat{k})r=(−2i^+3j^+4k^)+λ(2i^−j^+k^)r⃗=(2i^−j^+k^)+λ(−2i^+3j^+4k^)\vec{r} = (2\hat{i} - \hat{j} + \hat{k}) + \lambda(-2\hat{i} + 3\hat{j} + 4\hat{k})r=(2i^−j^+k^)+λ(−2i^+3j^+4k^)✅ Correct Option: 3Related questions:23 Aug Shift 1A vector perpendicular to a plane containing a triangle ABC having vertices as A(1,1,0)A(1,1,0)A(1,1,0), B(2,1,1)B(2,1,1)B(2,1,1) and C(0,3,2)C(0,3,2)C(0,3,2), is:22 May Shift 1Let a⃗=i^+j^+k^\vec{a} = \hat{i} + \hat{j} + \hat{k}a=i^+j^+k^ and b⃗=i^+2j^+3k^\vec{b} = \hat{i} + \hat{2j} + 3\hat{k}b=i^+2j^+3k^ then a unit vector perpendicular to both vectors (a⃗+b⃗)(\vec{a} + \vec{b})(a+b) and (a⃗−b⃗)(\vec{a} - \vec{b})(a−b) is equal to30 Aug Shift 1If a⃗,b⃗\vec{a}, \vec{b}a,b and c⃗\vec{c}c are three unit vectors such that a⃗+b⃗+c⃗=0\vec{a} + \vec{b} + \vec{c} = 0a+b+c=0, then the value of a⃗⋅b⃗+b⃗⋅c⃗+c⃗⋅a⃗\vec{a} \cdot \vec{b} + \vec{b} \cdot \vec{c} + \vec{c} \cdot \vec{a}a⋅b+b⋅c+c⋅a is