Deneme Sınavı Soruları

Which of the following is not true for an exponential function f(x)=a^x if 0<a<1?

What is the solution set of the exponential equation ?

What is the solution set of the inequality x-2>0?

Let f :R→R, f (x) = 1 + 3x and g :R→R, g(x) = x +12 be given. What is the value of (f+g)(1) =?

Which of the following function' s root is 0?

Which of the following is the intersection of intervals (-3, 7), and [4, 9)?

For the functions f : R→ R , f (x) = 3x - 7 and g : R→ R , g(x) = -x + 3, what is the value of the composition (f ∘ g)(2)=?

What is the solution of the equation ln(81x⁴)=20?

What is the value ?

What is the value of ?

Suppose f(x)=x²-1 and g(x)=3x-1. Find f(g(x)).

Which of the following statements is false?

1. If we denote this real number by x, and the function by f we may express it as 
2. It is customary to also denote this function by y = f (x).
3. In the expression y = f (x), x is called the independent variable.
4. In the expression y = f (x), y is called the dependent variable.
5. In the equation y = f (x)=3x+4, the dependent variable y is a function of the independent variable x.

Consider the function that assigns to each real number three times itself and four. Which of the statements above is/are correct?

1. A correspondence assigning each element of the set A, one and only one element of the set B is called a function from the set A into the set B.
2. In this context, the set A is called the domain or the departure set of the function.
3. In this context, the set B is called the range or terminal set.
4. For a given function f and an element a from its domain A, the element corresponding to a under the rule f is called the image of the element a, and is denoted by f (a).
5. A function defined from the set A to the set B is denoted by   or 

Let A and B be two sets different from the empty set. Which of the statements above regarding to functions are correct?

Which power of 7 is between 2000 and 2500

1. The sets A = {4, 8, 11, 15} and B = {8, 15, 4 ,11} are the same.
2. The empty set Ø is a subset of any set.
3. The equality A = B is equivalent to two inclusions: A ⊂ B and B ⊂ A.
4. The set of elements that are in either A or B or both is called the union of the sets A and B and is denoted by A ∪ B.
5. x ∈ A ∩ B if and only if x ∈ A and x ∈ B.
6. If A ∩ B = Ø then the sets A and B are called disjoint sets.
7. Universal set is unique.

Which of the statements above regarding to sets are correct?