(Solved): 3. Evaluate the following algebraic expressions in Excel using the appropriate Excel functions. So ...

3. Evaluate the following algebraic expressions in Excel using the appropriate Excel functions. Some expression may require multiple Excel functions. a) \( y=12 e^{-6 x} \) where \( x=0.5 \) b) \( z=\sqrt{\left|x^{2}-y^{2}\right|} \) where \( x=8 \) and \( y=5.9 \) c) \( y=8 \cos (2 x) \) where \( x=77 \) degrees (be sure to convert to radians!) d) \( y=\frac{\ln (6)}{x^{2}} \) When \( \mathrm{x}=4.5 \)