Prove that {4k +5 : K ∈ Z} = {4k +1 : K ∈ Z}

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.