MCQ
Degree and order of the differential equation $\frac{\text{d}^2\text{y}}{\text{dx}^2}=\Big(\frac{\text{dy}}{\text{dx}}\Big)^2$ are respectively:
- ✓$1, 2$
- B$2, 1$
- C$2, 2$
- D$1, 1$
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Then, the number of functions $g:[-1,1] \rightarrow[0,1]$ such that $(g \circ f)(x)=x$ for all $x \in[0,1]$ is