If the vectors 6i - 2j +3k , 2i +3j -6k and 3i + 6j -2k form a triangle, then it is.
right angled obtuse angled equilateral isoceles

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Solution

$\sin c e t h e i r a r e t h r e e v e c t o r s V_{1} = 6 i - 2 j + 3 k m a g n i t u d e o f V_{1} = \sqrt[]{36 + 4 + 9} V_{1} = 7 u n i t s i m i l i a r l y V_{2} = 2 i + 3 j - 6 K V_{2} = \sqrt[]{36 + 9 + 4} = 7 a l s o V_{3} = 3 i + 6 j - 2 k V_{3} = 7 \sin c e t h e m a g n i t u d e o f a l l s i d e s a r e s a m e s o a l l t h e a n g l e s a r e a l s o e q u a l l a n d t h e r e f o r e t h e t r i a n g l e i s e q u i l a t e r a l t r i a n g l e . s o C w i l l b e t h e o p t i o n$

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