Mathematics, 30.07.2019 18:20 starreee
Given the function f: [−pi / 2, pi / 2]→[−1,1]; f(x)=cosx, check which one(s) of the properties it has.
a. strictly decreasing
b. surjective
c. decreasing
d. strictly increasing
e. injective
f. increasing
g. none of the above
Answers: 3
Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0
Answers: 2
Given the function f: [−pi / 2, pi / 2]→[−1,1]; f(x)=cosx, check which one(s) of the properties it h...
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