Basic algebra formulas that you can revise anytime and anywhere

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FORMULAS FOR BEGINNER (a+b) ^2= a^2+b^2+2ab (a+b) ^2= (a-b) ^2+4ab (a-b) ^2= a^2+b^2-2ab (a-b) ^2= (a+b) ^2-4ab a^2+b^2= (a+b) ^2-2ab a^2+b^2= (a-b) ^2+ 2ab a^2-b^2= (a+b) (a-b) (a+b+c) ^2= a^2+b^2+c^2+2(ab+bc+ac) (a-b-c) ^2= a^2+b^2+c^2-2(ab-bc+ac) (a+b) ^3= a^3+b^3+3ab(a+b) (a-b) ^3= a^3-b^3+3ab(a-b) a^3+b^3= (a+b) (a^2-ab+b^2) a^3-b^3= (a-b) (a^2+ab+b^2) a^4-b^4= (a^2-b^2) (a^2+b^2) = (a^2+b^2) (a+b) (a-b) a^5+b^5= (a+b) (a^4-a^3b+a^2b^2-ab^3+b^4) a^5-b^5= (a-b) (a^4+a^3b+a^2b^2+ab^3+b^4)
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Union

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C Union is also like structure, i.e. collection of different data types which are grouped together. Each element in a union is called member.

Union and structure both are same, except allocating memory for their members. Structure allocates storage space for each member separately. Whereas, Union allocates one common storage space for all its members.

Syntax

union tag_name
{
data type var_name1;
data type var_name2;
data type var_name3;
};

Example

union student
{
int id;
char name[10];
char address[50];
};

Initializing and Declaring union variable

union student data;
union student data = {001,''AKKI'', ''mumbai''};


These are the Concept of C programming .We'll be glad if you share your valuable information with us regarding this topic, then it will be a golden opportunity for all of us to improve ourselves and know more. Comment below!!

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