1.If r⃗\vec{r}r and s⃗\vec{s}s are non-zero constant vectors and the scalar bbb is chosen such that ∣r⃗+bs⃗∣|\vec{r} + b\vec{s}|∣r+bs∣ is minimum, then the value of ∣bs⃗∣2+∣r⃗+bs⃗∣2|b\vec{s}|^2 + |\vec{r} + b\vec{s}|^2∣bs∣2+∣r+bs∣2 is equal toa.2∣r⃗∣22|\vec{r}|^22∣r∣2b.∣r⃗∣2/2|\vec{r}|^2/2∣r∣2/2c.3∣r⃗∣23|\vec{r}|^23∣r∣2d.∣r⃗∣2|\vec{r}|^2∣r∣2Login to continueOnly logged in users canattempt or see the solution.
