1.If the planes r⃗⋅(2i^−λj^+3k^)=0\vec{r} \cdot (2\hat{i} - \lambda\hat{j} + 3\hat{k}) = 0r⋅(2i^−λj^+3k^)=0 and r⃗⋅(λi^+5j^−k^)=5\vec{r} \cdot (\lambda\hat{i} + 5\hat{j} - \hat{k}) = 5r⋅(λi^+5j^−k^)=5 are perpendicular to each other, then the value of λ2+λ\lambda^2 + \lambdaλ2+λ isa.0b.2c.1d.3Login to continueOnly logged in users canattempt or see the solution.
