Use a graphing calculator to determine which expression completes the identity.The expression 
+ cot ?is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. sec ?
B. cos ?
C. csc ?
D. tan ?
Answer: C
Mathematics
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Find the phase shift of the function.y = cos 
A. 
units down
B. 
units up
C. 
units to the left
D. 
units to the right
Mathematics
Graph the linear equation.-x = 3y + 8
A. 
B. 
C. 
D. 
Mathematics
Use the formula 
to find the average rate of change of the function f(x) on the interval [a, b].f(x) = 4x, [2, 5]
A. 336 B. 208 C. 347 D. 504
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics