in haskell

7. 2pts) Convert each tuple to a product of its two elements, using map and a lambda expression.

8. 1pt) Using scanl, write a function that takes a list of Ints and make a list of cumulative sums.

9. 1pt) Consider this function:

applyThrice :: (Int -> Int) -> Int -> Int applyThrice f x = f (f (f x))

Use $ to make the second line more readable