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Mathematics 13 Online
OpenStudy (anonymous):

how would you explain to someone who has not yet studied trigonometry the difference between an identity and an equation

OpenStudy (electrochika):

An identity is an equation that is true for all values of the variable within its domain

OpenStudy (anonymous):

what about is sin(sin^-1x)=sin-1(sinx) an identical? why or why not?

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