Does anyone know how to simplify x^2+1x-12/4x^2-x-3

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

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