Question 16 (Essay Worth 7 points)

Verify the identity.

tan (x + π/2) = -cot x

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?