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Last updated on October 3, 2025
In mathematics, the expression \(a^2 + b^2 + c^2\) is commonly encountered in algebra and geometry. It represents the sum of the squares of three variables. In this topic, we will learn about the formula and its applications.
The expression \((a^2 + b^2 + c^2) \) can be expanded and manipulated in various ways. Let’s learn more about the formula and how it can be used.
The formula for \((a^2 + b^2 + c^2) \) is simply the sum of the squares of the three variables: \([ a^2 + b^2 + c^2 ] \)This expression does not have a straightforward simplification like a factorization, but it can be used in different algebraic manipulations and proofs.
The formula \((a^2 + b^2 + c^2)\) is important in various fields of mathematics and physics. It is used in vector calculations, Pythagorean theorem extensions, and optimization problems.
Understanding this formula helps in solving complex algebraic equations and geometric problems.
The expression\((a^2 + b^2 + c^2)\)is used in various real-life applications. For example:
Students may make errors when applying the formula\((a^2 + b^2 + c^2)\). Here are some common mistakes and how to avoid them.
Calculate \(3^2 + 4^2 + 5^2\).
The result is 50.
To calculate, square each number and sum them up: \([3^2 + 4^2 + 5^2 = 9 + 16 + 25 = 50]\)
Find the sum of squares for \(2, 7, \) and \(1\).
The sum is 54.
Square each number and add them: \([2^2 + 7^2 + 1^2 = 4 + 49 + 1 = 54]\)
Compute the value of \(6^2 + 2^2 + 3^2\).
The value is 49.
Calculate each square and then sum: \([6^2 + 2^2 + 3^2 = 36 + 4 + 9 = 49] \)
Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.
: He loves to play the quiz with kids through algebra to make kids love it.