Find the exact value of the indicated trigonometric function for the given right triangle.
Find sec A and csc A.
A. sec A = 
; csc A = 
B. sec A = 
; csc A = 
C. sec A = 
; csc A = 
D. sec A = 
; csc A = 
Answer: C
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Solve the problem.Find the area bounded by y = 
, x = 0, y = 0, and x = 2.
A. 
tan-1
B. 
tan-1
C. sin-1
D. 
sin-1
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.x1/9 ? x8/9
A. x
B. x8/81
C. x8/9
D. 
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = 
y = -1
A. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 1, f(x) is not differentiable at 
B. Since limx?-1+ f '(x) = -1 while limx?-1- f '(x) = 0, f(x) is not differentiable at 
C. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = -1, f(x) is not differentiable at 
D. Since limx?-1+ f '(x) = 0 while limx?-1- f '(x) = 0, f(x) is differentiable at 
Solve the problem.Find the points on the curve 
that are closest to the origin.
A. (729, ±
)
B. (729, 
)
C. (9, ±9
)
D. (9, 9
)