Find the net torque of these following forces about origin `vec(F)_(1) = hat(i) - hat(j) ` acting at ` vec(r_(1))= 2hat(i) + hat(j), vec(F)_(2) = -hat(i) + hat(j)` acting at `vec(r_(2)) =hat(i) +2hat(j) & vec(F)_(3) = hat(i) +hat(j) `acting at `vec(r )_(3) = hat(i) - hat(j)` .

Explanation

To find the net torque about the origin due to the given forces and their respective position vectors, we will follow these steps:

### Step 1: Define the Torque Formula
The torque \( \vec{\tau} \) produced by a force \( \vec{F} \) acting at a position vector \( \vec{r} \) is given by the cross product:
\[ \vec{\tau} = \vec{r} \times \vec{F} \]

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