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0580 Maths tough question

In order to solve it you first have to rearrange h^-1 (x). You start with replacing it with y= 3^x, the swapping the x and y around to make x = 3^y. Then you rearrange it with logs to get log(3)x = y So log(3)x = 2 therefore x =3^2 = 9
- Potential
- Post #2
- Apr 30, 2014
- Forum: O-Levels / GCSEs / IGCSE

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