Prove the identity:

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

How do you find the area of this triangle.

He concluded that a heavier object dropped from the same height as a lighter object will land

Glenda makes an online purchase for picture frames for $12.95 each and formats of $5.89 each the site says it taxes paid by the customer or 6.5% of the total purchase price shipping charges are based on the