The correct option is C 1s The value of ( 1 r + 1 s ) ( r r+s ) = ( r+s rs ) ( r r+s ) On cancelling the common terms, we get = 1 s ...

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Medians of a Triangle and the Drawing Method

Solve 1/r+1...

Question

Solve $(\frac{1}{r} + \frac{1}{s}) (\frac{r}{r + s})$

\frac{1}{r}

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\frac{r}{(r + s)^{2}}

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\frac{r}{s}

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\frac{s}{r}

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\frac{1}{s}

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Solution

The correct option is C $\frac{1}{s}$
The value of $(\frac{1}{r} + \frac{1}{s}) (\frac{r}{r + s})$
$= (\frac{r + s}{r s}) (\frac{r}{r + s})$
On cancelling the common terms, we get
$= \frac{1}{s}$

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Solve (1r+1s)(rr+s)

The correct option is C 1sThe value of (1r+1s)(rr+s)=(r+srs)(rr+s)On cancelling the common terms, we get=1s

Solve $(\frac{1}{r} + \frac{1}{s}) (\frac{r}{r + s})$

The correct option is C $\frac{1}{s}$
The value of $(\frac{1}{r} + \frac{1}{s}) (\frac{r}{r + s})$
$= (\frac{r + s}{r s}) (\frac{r}{r + s})$
On cancelling the common terms, we get
$= \frac{1}{s}$