# Functions - practice problems

In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. The set of inputs is commonly referred to as the domain, while the set of outputs is referred to as the range.A function is typically represented by an equation that describes the relationship between the input and output. For example, the equation y = 2x + 1 describes a linear function, where y is the output and x is the input. The input (x) can be any real number, and for each value of x, there is a corresponding output (y) given by the equation.

Functions can also be represented graphically, with the input values on the x-axis and the output values on the y-axis. A graph of a function is a set of ordered pairs (x, y) that satisfy the equation.

There are different types of functions, such as polynomial functions, exponential functions (y=e^x), and trigonometric functions (sin,cos,tan ...), each with their own unique properties and behaviors.

#### Number of problems found: 5602

- Derivation

Does there exist a function whose derivation is the same function? - Logarithm

Determine the number whose decimal logarithm is -3.8. - Value

Find the value of the expression: 6!·10^{-3} - Percentages

Expressed as a percentage: - Percentages

52 is what percent of 93? - The determinant

The determinant of the unit matrix equals 7. Check how many rows the A matrix contains. - Harmonic 4

Find the harmonic mean of -6 and 5. - Harmonic mean

Harmonic means of 6 and 12 - Ratio v2

Decrease in the ratio 12:16 number 13.2. - Big factorial

How many zeros end number 116! ? - Determinant 4320

Calculate the value of the determinant of a unit matrix with 11 rows. - Derivative 4239

Determine the value of the derivative of the function f (x) = 10 - Convert 8

Convert 11/2 into a percent? - Decadic logarithm

Log10 30 - log10 3 = X. Find X . - Which 3

Which is an equivalent ratio of 12:36 - Variable

Find variable P: PP plus P x P plus P = 160 - What percentage

What percentage is 12 km out of 80 km? - Gain

Find the gain whenever the output power is 21x the input power. - Determine 4414

Determine how many rows the 7th-order square matrix contains. - Third-order 4413

Determine how many elements a third-order square matrix contains.

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