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College Math Practice Test 148

# Composition of functions Test Questions PDF - 148

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## Math: Composition of functions MCQs Quiz

MCQ: If ƒ(x) = x² + 3 and g(x) = 1/x, then (fog)(x) =

A) √(x² +1/x
B) x² +1/x
C) 1/x² +1
D) x + 3

MCQ: 15P1 is equal to

A) 16
B) 15
C) 30
D) None of Above

MCQ: 1/(x+3)(x+2) =

A) 1/x³ - 1/(x+2)
B) 1/(x-3) - 1/(x-2)
C) 1/(x+3) - 1/(x+2)
D) None of Above

MCQ: Sin(α + β) + sin(α - β)/cos(α + β) + cos(α - β) =

A) sin²α-cos²β
B) −cotα
C) cotα
D) tanα

MCQ: If G = { 1, -1, ι, - ι } is group under multiplication, then inverse of ι is

A) 1
B) −1
C) ι
D) None of Above