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April 16, 2021 MATHEMATIC QUIZ

Math quiz helps us to increase our knowledge

1 / 5

If A = [(x, y) : x2 + y2 = 25] and B = [(x, y) : x2 + 9y2 = 144], then A ∩ B contains _______ points.

2 / 5

Let R be the relation on the set R of all real numbers defined by a R b if and only if |a − b| ≤ 1. Then R is __________.

3 / 5

If f: R → S defined by f (x) = sinx − √3 cosx + 1 is onto, then what is the interval of S?

4 / 5

If f (x) = cos [π2] x + cos[−π2] x, then find the function of the angle.

5 / 5

Let f : R → R be defined by f (x) = 2x + |x|, then f (2x) + f (−x) − f (x) = _______.

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