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How to solve this question?

How to solve this question?-example-1
User Drdot
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1 Answer

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f(g(x)) where you see an 'x' in f(x) put a g:

f(g(x)) = 1/(g-7), now step by step: g - 7 = 6/x+7-7=6/x, and 1/(g-7)=1/(6/x)=x/6!

I let the second one for you. Sorry if you disagree!
User Cloakedninjas
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