Exercises

1. Is the function `ftext[(]xtext[)]=x^2+7`
   1. additive?
   2. multiplicative?
   3. even?
   4. odd?
2. Is the function `phi text[(]t text[)]=t^(3//2)`
   1. additive?
   2. multiplicative?
   3. even?
   4. odd?
3. Is the function `lambda text[(]t text[)]=|t|^(3//2)`
   1. additive?
   2. multiplicative?
   3. even?
   4. odd?