a) \( \log _{3} \sqrt{3} \)

ต่ละข้อต่อไปนี \( 2 . \mathrm{i}^{2019}+\mathrm{i}^{2020}+\mathrm{i}^{2021}+\ldots+\mathrm{i}^{2564}= \)

1. \( i^{200004} \)

Express \( x^{\frac{3}{4}} \) in terms of a radical expression.

The value of a car decreases exponentially over time. If the initial value is $20,000 and it depreciates by 15% each year, what will be its value after 2 years?

Write the following in the form of logarithem \( \begin{array}{ll}\text { (1) } 10^{3} \Rightarrow 1000 & \text { (ii) }(128)^{\frac{1}{7}} \Rightarrow 2\end{array} \)