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Byju's Answer

Standard IX

Mathematics

Area of Plane Figures

If D⃗A⃗=a⃗;...

Question

If $\to D A = \to a; \to A B = \to b$ and $\to C B = k \to b$ where $k > 0$ and $X, Y$ are the mid-points of $D B$ and $A C$ respectively such that $| \to a | = 17$ and $| \to X Y | = 4$ , then $k =$

\frac{8}{17}

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\frac{9}{17}

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\frac{11}{17}

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\frac{4}{17}

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Solution

The correct option is B $\frac{9}{17}$

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If →DA=→a;→AB=→b and →CB=k→b where k>0 and X,Y are the mid-points of DB and AC respectively such that |→a|=17 and |→XY|=4, then k=

The correct option is B 917

If $\to D A = \to a; \to A B = \to b$ and $\to C B = k \to b$ where $k > 0$ and $X, Y$ are the mid-points of $D B$ and $A C$ respectively such that $| \to a | = 17$ and $| \to X Y | = 4$ , then $k =$

The correct option is B $\frac{9}{17}$