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Math 12 Chapter 1-Functions & LimitsTest - 1

# Math 12 - Functions & LimitsTest - 9

 1. If a vertical line cuts a graph in more than one point, then it is a function False True
 2. For any set X a function I : X ® X or I(x) = x, " x e X, it is called an inverse function. False True
 3. Let f & g be function defined on variable x then f g(x) = gf(x). True False
 4. Domain of secx is {x : x e R and x ¹ (2x +1) p/2}. True False
 5. limx®a(xn-an) / (x-a) = nan-1 True False
 6. Cosine function is an even function. False True
 7. The domain of f(x) = x2 is the set of all Rational Nos. False True
 8. When variables x & y are expressed in terms of another variable, then it is called polynomial function. Fasle True
 9. If g(x) = 2x than it is called a logarithmic function. False True
 10. Rational function is defined as where P(x) / Q(x) are polynomials and Q(x) ¹ 0. False True

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