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If aijkbijkcijka→=i^ -2j^+3k^,b→=2i^+j^-2k^,c→=3i^+2j^+k^, find abc(a→×b→)×c→ - Mathematics

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प्रश्न

If `vec"a" = hat"i"  - 2hat"j" + 3hat"k", vec"b" = 2hat"i" + hat"j" - 2hat"k", vec"c" = 3hat"i" + 2hat"j" + hat"k"`, find `(vec"a" xx vec"b") xx vec"c"`

बेरीज
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उत्तर

`vec"a" xx vec"b" = |(hat"i", hat"j", hat"k"),(1, -2, 3),(2, 1, -2)|`

= `hat"i"(4 - 3) - hat"j"(- 2 - 6) + hat"k"(1 + 4)`

= `hat"i" + 8hat"j" + 5hat"k"`

`vec"a" xx vec"b" xx vec"c" = |(hat"i", hat"j", hat"k"),(1, 8, 5),(3, 2, 1)|`

`hat"i"(8 - 10) - hat"j"(1 - 15) + hat"k"(2 - 24)`

= `- 2hat"i" + 14hat"j" - 22hat"k"`

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Applications of Vector Algebra - Exercise 6.3 [पृष्ठ २४२]

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सामाचीर कलवी Mathematics - Volume 1 and 2 [English] Class 12 TN Board
पाठ 6 Applications of Vector Algebra
Exercise 6.3 | Q 1. (i) | पृष्ठ २४२

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