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Kwenz
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is this triangle isosceles
A(7,-2)
B(-1,-8)
C(5,0)
A(7,-2)
B(-1,-8)
C(5,0)
MHB Is triangle ANC and isosceles triangle and why
- Thread starter Kwenz
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To determine if triangle ABC is isosceles, the lengths of its sides AB, BC, and AC must be calculated using the distance formula. The distances are found to be AB = √((7 - (-1))² + ((-2) - (-8))²), BC = √((-1 - 5)² + ((-8) - 0)²), and AC = √((7 - 5)² + ((-2) - 0)²). After calculating, if any two sides are equal, the triangle is classified as isosceles. The discussion focuses on verifying the equality of these side lengths. The conclusion will confirm whether triangle ABC is isosceles based on the calculated distances.
Obviously, there is something elementary I am missing here.
To form the transpose of a matrix, one exchanges rows and columns, so the transpose of a scalar, considered as (or isomorphic to) a one-entry matrix, should stay the same, including if the scalar is a complex number. On the other hand, in the isomorphism between the complex plane and the real plane, a complex number a+bi corresponds to a matrix
in the real plane; taking the transpose we get
which then corresponds to a-bi...
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