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Mathematics, 03.11.2019 06:31 AnastasiaJauregui
Find the three angles of a triangle if the sum of the first angle and twice the second equals the third and, and if four times the second angle is 15 degrees more than the third.
write a system of equations, then write a matrix equation. solve the equation and write a sentence.
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Find the three angles of a triangle if the sum of the first angle and twice the second equals the th...
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