If f(x)=−1, what is f(f(−1))?
- -1
- 0
- 1
- Undefined
Explanation
We are told
f(x)=−1 for any input x.
Sof(−1)=−1.
Then f(f(−1))=f(−1)=−1.
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اس سوال کو وضاحت کے ساتھ پڑھیں
- The point will always lie on the y-axis.
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