Grade 88 grade maths

sir, i am not understanding the algebric identities.

ab nag

10 Years agoGrade 8

2 Answers

venky

10 Years ago

In mathematics an identity is an equality relation A = B, such that A and B contain some variables and A and B produce the same value as each other regardless of what values (usually numbers) are substituted for the variables. In other words, A = B is an identity if A and Bdefine the same functions. This means that an identity is an equality between functions that are differently defined. For example (a + b)² = a² + 2ab + b² and cos²(x) + sin²(x) = 1 are identities. Identities are sometimes indicated by the triple bar symbol ≡ instead of =, theequals sign.

OUTPASS

10 Years ago

This means that an identity is an equality between functions that are differently defined. For example (a + b)² = a² + 2ab + b² and cos²(x) + sin²(x) = 1 are identities.