a) Write an appropriate Python arithmetic expression for each of the following: 1. $\mathrm{A}=\sqrt{(a-b) \times(b-c) \times (c-a)}$ 2. $\mathrm{S}=(2 \mathrm{A}-2 \mathrm{B}) \div \mathrm{C}^{2}$ 3. Root $=\frac{-b+\sqrt{b^{2}-4 a c}H2 a!$ 4. $B=P\left(1+\fracr}{n} ight)^{n t}$ CS.SD.652