Find the exact value using a sum or difference identity: cos (-300°)
Hint: sin(A + B) = sin A cos
B = cos A sin B
cos(A + B) = cos A cos B = sin A sin B

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove