Algebra Formulas for Class 11
Algebra Formulas for Class 11 which are mostly used are formulas of permutations and combinations. If different arrangements of r things from the n available things are required then permutation formulas are used, whereas combinations formulas are used for finding the different groups of r things from n available things.
The important permutation and combination formulas are,
- n! = n × (n – 1) × (n – 2) × … × 3 × 2 × 1
- nPr = n! / (n – r)!
- nCr = n!/[r!(n−r)!]
Binomial Theorem is another formula that is of the utmost importance for students in class 11.
Algebra Formulas
Algebra Formulas are the basic formulas that are used to simplify algebraic expressions. Algebraic Formulas form the basis for solving various complex problems. Algebraic Formulas help solve algebraic equations, quadratic equations, polynomials, trigonometry equations, probability questions, and others.
An identity is a true equation for any values assigned to the variables. Algebraic Identities are used to solve various equations. For Algebraic Identities, L.H.S is always equal to R.H.S.
Table of Content
- What are Algebra Formulas?
- Algebraic Identities
- Algebra Formulas for Class 8
- Algebra Formulas for Class 9
- Law of Exponent
- Algebra Formulas for Class 10
- Formulas for Arithmetic Sequence
- Formulas for Geometric Sequence
- Algebra Formulas for Class 11
- Algebra Formulas for Class 12
- Solved Examples on Algebra Formulas
- Summarizing Algebra Formulas
- Practice Problems on Algebra Formulas