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OpenStudy (anonymous):
inverse functions
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OpenStudy (anonymous):
OpenStudy (anonymous):
@hartnn
hartnn (hartnn):
y= 1/ (-x^2-7) interchange x and y x = 1/ (-y^2 -7) can you try to isolate y from this ? that y will be your inverse function
OpenStudy (anonymous):
yeah i understand that ^ part but the isolating is the problem
OpenStudy (anonymous):
how about cross multiplying?
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hartnn (hartnn):
yes, cross-multipl :) x (-y^2-7) = 1 so, x (y^2+7) = -1 now how about distributing x ?
OpenStudy (anonymous):
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