1.

यदि `(3-5x)/(2x)+(3-5y)/(2y)+(3-5z)/(2z)=0`, तो `2/x+2/y+2/z` क मान क्या है?A. 20B. 10C. 5D. 15

Answer» Correct Answer - B
`(3-5x)/(2x)+(3-5y)/(2y)+(3-5z)/(2z)=0`
or `3/(2x)-5/2+3/(2y)-5/2+3/(2z)-5/2=0`
or `3/(2x)+3/(2y)+3/(2z)=(3xx5)/2`
or `1/x+1/y+1/z=(3xx5xx2)/(2xx3)`
or `2/x+2/y+2/z=(3xx5xx2xx2)/(2xx3)`
`=10`


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