MCQ
જો $\mathrm{y}=\frac{1}{a-\mathrm{z}}$, તો $\frac{\mathrm{dy}}{\mathrm{dz}}=\ldots \ldots \ldots .$.
- ✓$(\mathrm{z}-a)^2$
- B$-(\mathrm{z}-a)^2$
- C$(\mathrm{z}+a)^2$
- D$-(\mathrm{z}+a)^2$
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