A. 4-sen α = cos^2 a

B. sen^2 α + cos a + 1=0

C. 5-5 cos α = 3 sen^2 α

D. 8 tg α = 3 cos α

E. 3 cot α = tan α

F. 2 tg α = 3+5 cot α

G. csc^2 = 3 cat α - 1

H. sen α = cos α

I. sen α + cos α = 1

J. 2 sen α = csc α

K. cos^2 α - sen^ 2 α = 1/2

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?