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Explain the given image.....................................................................

Explain the given image.....................................................................

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Grade:11

2 Answers

Anish Singhal
askIITians Faculty 1194 Points
3 years ago
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Aditya Gupta
2081 Points
3 years ago
so write f(x)= 1 – 2/(4^x + 1)
now 4^x lies in (0, inf)
so 4^x  + 1 lies in (1, inf)
so 1/(4^x  + 1) lies in (0,1)
so –2/(4^x  + 1) lies in ( –2, 0)
so 1–2/(4^x  + 1) lies in ( –1, 1)
or f(x) has range (-1,1).

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