Question

what are identitie useful explain with examples ​

Answer 1

Identities helps us to solve a problem easily in mathematics. It savesbthe time and make it easier for us to do the some. It is also helpful in engineering. For example when a engineer wants to build a building or a house he/she uses those identities to measure the magnitude of the units used there

Hope it helps :-)

Answer 2

Algebraic identities are equations where the value of the left-hand side of the equation is identically equal to the value of the right-hand side of the equation.

Examples:

Identity-I: (a + b)2 = a2 + 2ab + b2

Identity-II: (a – b)2 = a2 – 2ab + b2

Identity-III: (a + b)3 = a3 + 3a2b + 3ab2 + b3

Identity-IV: (a – b)3 = a3 – 3a2b + 3ab2 – b3

Identity-V: (a + b)4 = a4 + 4a3b + 6a2b2 + 4ab3 + b4

Identity-VI: (a – b)4 = a4 – 4a3b + 6a2b2 – 4ab3 + b4