Equations Involving Indices (Leaving Cert Mathematics): Flashcards
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12 cards from this deck
Equations involving indices
Equations involving indices
Equations where the variable is an exponent
If , then...
If , then...
First step to solve index equations
First step to solve index equations
Express both sides as powers of same base
Formula for
Formula for
equals
equals
as fractional index
as fractional index
What negative indices represent
What negative indices represent
Reciprocals
Express 25 as a power of 5
Express 25 as a power of 5
Express 125 as a power of 5
Express 125 as a power of 5
Simplify
Simplify
Simplify
Simplify
How to verify solution to index equation
How to verify solution to index equation
Substitute answer back into original equation
