Question

how many identity are there in maths​

Answer 1

Answer:

The algebraic identities consist of 8 major identities, which consist of algebraic expressions and is true for identity definition. The algebraic formulas are also derived using these identities. These identities and formulas will be used to solve algebraic equations.

Step-by-step explanation:

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Answer 2

Answer:

There are total 8 identity,

They are

$1. {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$

$2. {(a - b)}^{2} = {a}^{2} - 2ab + {b}^{2}$

$3. {a}^{2} - {b}^{2} = (a + b)(a - b)$

$4.(x + a)(x + b) = {x}^{2} + (a + b)x + ab$

$5. {(a + b + c)}^{2} = {a}^{2} + {b}^{2} + {c}^{2} + 2ab + 2bc + 2ac$

$6.{(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b)$

$7. {(a - b)}^{ 3} = {a}^{3} - {b}^{3} - 3(a - b)$

$8.{a}^{3} + {b}^{3} + {c}^{3} - 3abc$

This is a problem of Algebra.

Some important Algebra formulas.

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab − b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

(a - b)³ = a³ - 3a²b + 3ab² - b³

a³ + b³ = (a + b)³ − 3ab(a + b)

a³ - b³ = (a -b)³ + 3ab(a - b)

a² − b² = (a + b)(a − b)

a² + b² = (a + b)² − 2ab

a² + b² = (a − b)² + 2ab

a³ − b³ = (a − b)(a² + ab + b²)

a³ + b³ = (a + b)(a² − ab + b²)

Know more about Algebra,

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2) https://brainly.in/question/1169549