Use a power-reducing identity to find the exact value of the expression.sec2 (-112.5°)

A. 4 + 2
B. 8 - 4
C. 8 + 4
D. 4 - 2


Answer: A

Mathematics

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Integrate the function. dx

A.  ln   -    + C
B. x + ln   +    + C
C.  ln   - sin-1   + C
D. ln   +    + C

Mathematics

Sketch by hand the graph of the function. Give the coordinates for the vertex.y = x2 - 2x + 5

A. vertex: (1, -4)

B. vertex: (-1, 4)

C. vertex: (-1, -4)

D. vertex: (1, 4)

Mathematics

Provide the proper response.Explain how radical denominators are rationalized.

What will be an ideal response?

Mathematics

Find the inverse of the function and state its domain and range .{(3, -2), (2, -3), (-8, 3), (8, -3)}

A. {(-3, -8), (-8, 2), (-2, 3), (3, 8)}; D = {-3, -8, -2, 3}; R = {-8, 2, 3, 8}
B. {(-3, -8), (-3, 2), (-2, 2), (3, 8)}; D = {(-3, -3, -2, 3}; R = {-8, 2, 8}
C. {(-2, 3), (-3, 2), (3, -8), (-3, 8)} D = {-2, -3, 3, -3}; R = {3, 2, -8, 8}
D.  D = { 3, 2, -8, 8}, R = 

Mathematics