1. Solve for x in the right triangle shown inthe figure below.

1a. The figure below shows two right triangles drawn at90? to one another. Find the lengthof DB if DA = 8, AC =5,and BC = 3.

DB =

1b. An escalator in a department store is to carry people avertical distance of 11 feet between floors. How long isthe escalator if it makes an angle of 45? with the ground?(Round your answer to one decimal place.)

1c. Find all six trigonometric functions for ? ifthe point (?8, ?1) lies on the terminal sideof ? in standard position. (If an answer is undefined,enter UNDEFINED.)

sin?=

cos?=

tan?=

csc?=

sec?=

cot?=

1d. Find sin A, cos A,tan A, and sin B, cos B,and tan B in right triangle ABC,with C = 90? given the followinginformation.b = 5 and c = 6

sin A=

cos A=

tan A=

sin B=

cos B=

tan B=

12 6