Solution of Literal Equations and Systems of Equations (VCE SSCE Mathematical Methods): Flashcards

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Solution of Literal Equations and Systems of Equations
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Literal equation definition

Equation with multiple letters/symbols

Non-linear literal equations contain

Powers, roots, or products of variables

Solutions for xn=ax^n = a when nn is odd

One solution: x = a^{ rac{1}{n}}

Solutions for xn=ax^n = a when nn even, ageq0a geq 0

Two solutions: x = pm a^{ rac{1}{n}}

Symbol needed for even power solutions

pmpm (plus-minus)

Discriminant condition for real solutions

b24acgeq0b^2 - 4ac geq 0

Method for finding curve intersections

Substitution method

Repeated roots indicate

Tangency (curves touch at one point)

What intersection points satisfy

Both equations simultaneously

First step in substitution method

Express one variable in terms of the other

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