m3rk098 m3rk098

02-05-2018
Mathematics

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hey can you please help me posted picture of question

hey can you please help me posted picture of question class=

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11beehshahbaz 11beehshahbaz

02-05-2018

The inverse of 7x ix x/7

The composition of the function and its inverse must be zero. So the composition of 7x with x/7 is:

[tex](F( F^{-1}x)) \\ \\ =F( \frac{x}{7}) \\ \\ = 7(\frac{x}{7}) \\ \\ = x [/tex]

Thus, 7x and x/7 are inverse of each other.

So the answer to this question is option B

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