# Maths Formulas For Class 10: Important Class 10 Mathematics Formulas

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Maths Formulas For Class 10: Important Class 10 Mathematics Formulas

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I will put here all formulas from maharashtra board .

## 1. Class 10 Maths Formulas Linear Equations ,Pair of Linear Equations in two variables

 One Variable ax+b=0 a≠0 and a&b are real numbers Two variable ax+by+c = 0 a≠0 & b≠0 and a,b & c are real numbers Three variable ax+by+cz+d=0 a≠0 , b≠0, c≠0 and a,b,c,d are real numbers

The pair of linear equations in two variables are given as:

a1x+b1+c1=0 and a2x+b2+c2=0

Where a1, b1, c1, & a2, b2, c2 are real numbers & a12+b12 ≠ 0 & a2+ b22 ≠ 0

## 2.Class 10 Maths Formulas For  Quadratic Equations

The Quadratic Formula: For a quadratic equation px2 + qx + r = 0, the values of x which are the solutions of the equation are given by:

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$

## 3 .Class 10 Maths Formulas For Arithmetic Progression (AP)

If a1, a2, a3, a4….. be the terms of an AP and d be the common difference between each term, then the sequence can be written as: a, a + d, a + 2d, a + 3d, a + 4d…… a + nd. where a is the first term and (a + nd) is the (n – 1) th term. So, the formula to calculate the nth term of AP is given as:

nth term = a + (n-1) d

The sum for the nth term of AP where a is the 1st term, d is the common difference, and l is the last term is given as:

Sn = n/2 [2a + (n-1) d] or Sn = n/2 [a + l]

## 4.Class 10 Maths Formulas For Financial Planning

taxable value = output tax - input tax

## 5. Class 10 maths Formulas for Probability

 Probability Range 0 ≤ P(A) ≤ 1 Bayes Formula P(A|B) = P(B|A) ⋅ P(A) / P(B) Rule of Addition P(A∪B) = P(A) + P(B) – P(A∩B) Disjoint Events – Events A and B are disjoint if P(A∩B) = 0 Independent Events – Events A and B are independent iff P(A∩B) = P(A) ⋅ P(B)

## 6. Class 10 Maths Formulas For Statistics

Statistics in Class 10 is mostly about finding the Mean, Median, and Mode of the given data .

Mean formulas

1.Direct Method  x̅ =$$\sum _i^n=fixi\over \sum_i^n=fi$$

2.Assume Mean method   x̅= a+$$\sum_i^n=fidi\over \sum_i^n=fi$$

3. step deviation method x̅= a+$$\sum_i^n=fidi\over \sum_i^n=fi$$ ×h

Mode = I+$${fi-f0\over 2f1-f0-f2}\times h$$

Median =I+$${{n\over2}-cf\over f}\times h$$