1.Which one of the following is the unit vector perpendicular to both a⃗=−i^+j^+k^\vec{a} = -\hat{i} + \hat{j} + \hat{k}a=−i^+j^+k^ and b⃗=i^−j^+k^\vec{b} = \hat{i} - \hat{j} + \hat{k}b=i^−j^+k^?a.i^+j^2\frac{\hat{i}+\hat{j}}{\sqrt{2}}2i^+j^b.k^\hat{k}k^c.j^+k^2\frac{\hat{j}+\hat{k}}{\sqrt{2}}2j^+k^d.i^−j^2\frac{\hat{i}-\hat{j}}{\sqrt{2}}2i^−j^Login to continueOnly logged in users canattempt or see the solution.
