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Answer to Question #51195 in Algebra for tinn
Question #51195
f:R-{1/2}to R f(x)=(x+3)/(2x-1). IS IT INJECTIVE?
IF f(x1)=f(x2) and then x1=x2 it's injective.
so i want to check f(1)=4 f(2)=5/3. it never become same y value for different x value. but why to check is it injective or not we do f(x1)=f(x2) and then x1=x2?
IF f(x1)=f(x2) and then x1=x2 it's injective.
so i want to check f(1)=4 f(2)=5/3. it never become same y value for different x value. but why to check is it injective or not we do f(x1)=f(x2) and then x1=x2?
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