Show that the points a- - - 3 - 3 - - 3 - - b- - 6 - - c - 3 - 3 - - 3 - form the sides of an isosceles triangle-

We have a #160; = #160; 3√(3)i 3j b #160; = 6j c #160; = 3√(3)i + 3j Now,at the place of a #160; = #160; 3√(3)i 3j will ...

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Summary:Coordinate Geometry

Show that the...

Question

Show that the points $\to a = - 3 \sqrt{3}^i - 3^j, \to b = 6^j, c = 3 \sqrt{3}^i + 3^j$ form the sides of an isosceles triangle.

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\to a = 3^i - 2^j +^k, \to b =^i - 3^j + 5^k a n d \to c = 2^i +^j - 4^k

\to a = (3^i - 4^j - 4^k)

\to b = (2^i -^j +^k)

\to c = (^i - 3^j - 5^k)

\to a =^i - 3^j + 2^k, \to b = 3^j + 4^k

\to c = 2^k - 3^i

(\to a \times \to b) . \to c

\to a = 2^i - 3^j +^k

\to b = 3^i + 2^j

\to a \times \to b

\to a = 3^i + 4^j

\to b = 2^i - 3^j

(\to a + \to b) . (\to a - \to b)

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