Functions 1 Question 12

12. If f(x)=sinlog4x21x, then the domain of f(x) is… .

(1985, 2M) 13. The domain of the function f(x)=sin1log2x22 is given by …

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Answer:

Correct Answer: 12. (2,1)

Solution:

  1. Given, f(x)=sinlog4x21x

For domain, 4x21x>0,4x2>0 and 1x0

(1x)>0 and 4x2>0x<1 and |x|<22<x<1

Thus, domain (2,1).



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