A) \[xw=yz\]
B) \[xz=yw\]
C) \[x+y=w+z\]
D) \[x-y=w-z\]
Correct Answer: A
Solution :
Given \[{{P}^{x}}={{r}^{y}}\] \[\Rightarrow \] \[r={{p}^{x/y}}\] ?(i) And \[{{p}^{z}}={{r}^{w}}\] \[\Rightarrow \] \[r={{p}^{z/w}}\] ?(ii) From Eps. (i) and (ii) \[{{p}^{x/y}}={{p}^{z/w}}\] \[\Rightarrow \] \[\frac{x}{y}=\frac{z}{w}\] \[\Rightarrow \] \[xw=yz\]You need to login to perform this action.
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