Given: A. sin(x)

B. cos(x)

C. cos(y)

D. sin(y)

Use the drop-down menus in the derivation of the sine sum identity:

cos(x + y)

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

72 fudge and 75 toffee

step-by-step explanation:

i hope this : )

the answer is b