Identification of Special Functions: Definition, examples, graph || Calculus.

In mathematics Calculus, there are some special functions in calculus mathematics and we will discuss them, and study its definition, examples, and graph in an easy. 

What are special functions in calculus in simple wordings?

Odd function, even function, implicit function, and explicit function are said to be some special functions in calculus mathematics.

What is an odd function in simple wordings?

Odd function is a function of f(-x) gives –f(x). The definition of an odd function in simple words is that if the answer of a given function comes to its negative or opposite sign then the function is said to be an odd function.

4 important examples of an odd function:

Here are 4 important examples of an odd function. Through this, you can learn odd functions quickly and in an easy way.

1. f(x)= 𝑥5

f(-x)= (-𝑥)5

f(-x)= -𝑥5

Thus, f(x)=𝑥5 is said to be an odd function the answer of the function is the opposite of the given function.

2. f(x)= 𝑥5+𝑥3

 f(-x)= (-𝑥)5+(-𝑥)3

f(-x)= -𝑥5+(-𝑥3)        

f(-x)= -𝑥5-𝑥3

Hence, the function is odd.

3. f(x)= 𝑥7( Do it yourself now)

4. f(x)= 𝑥9+𝑥11 ( Do it yourself now)

Graphically representation of the odd function:



What is an even function in simple wordings?

A function is said to be even function when f(-x) gives f(x). The definition of an even function in simple words will be that if we change the sign of a function and the answer comes the same as the given function even after changing the sign, the function is said to be an even function.

See Also: Factorization types and their easy examples

4 important examples of even function:

Here are 4 important examples of even function. Through which you can learn even function instantly and in an easy way.

1. f(x)= 𝑥4

f(-x)= (-𝑥)4

f(-x)= 𝑥4

f(-x)= f(x) Hence it is said to be an even function.

2. f(x)= 𝑥4 +𝑥2

f(-x)= (-𝑥)4 +(-𝑥)2

f(-x)= 𝑥4 +𝑥2

3. f(x)= 𝑥6 (Do it yourself)

4. f(x)= 𝑥6 +𝑥8 (Do it yourself)

Graphically representation of the even function:

What is the explicit function in simple wordings?

The function is said to be an explicit function that has an individualistic variable 𝑥. In simple wordings, the definition of explicit function is that if we freely represent y in terms of variable 𝑥 then the “y” will be called an explicit function. It is shown as y=f(x)

4 important examples of explicit function:

Here are 4 important examples of explicit functions. By going through them you will learn explicit functions instantly and in an easy manner.

1. y= 𝑥4 +𝑥2 -1

2. y= e𝑥+𝑥2

3. y= e𝑥+cos𝑥

4. y= 3𝑥2 +5𝑥 -1

What is the Implicit function in simple wordings?

The definition of implicit function in simple words is that it is the opposite of explicit function. As the Implicit function does not contain any individualistic variable x and we are unable to write the y independently. The more simplistic definition of implicit function is that x and y are put together so we cannot express the term y independently, and It is symbolically represented as f(x,y)=0.

4 important examples of implicit function:

Here are 4 important examples of implicit function. Going through these examples will help you to learn the implicit function in an easy way.

1. 𝑥4 y +𝑥 y2 -1= 2

2. 2xy= e𝑥y+cos𝑥

3. 3y= 3𝑥2y2 +5𝑥y -1

4. 2xy= 3y+sin𝑥

How do turn an implicit function into an explicit function in calculus?

Some functions can easily turn an implicit function into an explicit function in calculus.

Steps of converting implicit function to an explicit function in calculus:

Through an example, we will show the steps of converting an implicit function to an explicit function in calculus.

1. 𝑥2y= 2𝑥3

y= 2𝑥3÷𝑥2

y= 2𝑥

Hence, in these easy steps, you can convert an implicit function into an explicit function. 

Hope you have understood all some special functions in calculus mathematics

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