Prove the identity:

cos(x-y)/cos x sin y = cot y + tan x

When the ball has traveled a distance of

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?

How do you find the distance of each number from the mean