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CBSE Class 12-science Answered

Find the value of  i X ( j + k) + j X ( k + i) + k X ( i + j)         i j and k and k are unit vector Give complete solution do not go shortcut
Asked by haroonrashidgkp | 31 Oct, 2018, 05:50: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight i with hat on top cross times open parentheses straight j with hat on top plus straight k with hat on top close parentheses plus straight j with hat on top cross times open parentheses straight k with hat on top plus straight i with hat on top close parentheses plus straight k with hat on top cross times open parentheses straight i with hat on top plus straight j with hat on top close parentheses equals straight i with hat on top cross times straight j with hat on top plus straight i with hat on top cross times straight k with hat on top plus straight j with hat on top cross times straight k with hat on top plus straight j with hat on top cross times straight i with hat on top plus straight k with hat on top cross times straight i with hat on top plus straight k with hat on top cross times straight j with hat on top equals straight k with hat on top minus straight j with hat on top plus straight i with hat on top minus straight k with hat on top plus straight j with hat on top minus straight i with hat on top space space space space space space space space space space space space space space space space space space space space space space space space space space space Using space straight i with hat on top cross times straight j with hat on top space equals space straight k with hat on top comma space straight i with hat on top cross times straight k with hat on top equals negative straight j with hat on top comma space straight j with hat on top cross times straight k with hat on top equals straight i with hat on top comma space straight j with hat on top cross times straight i with hat on top equals negative straight k with hat on top comma straight k with hat on top cross times straight i with hat on top equals straight j with hat on top comma space straight k with hat on top cross times straight j with hat on top equals negative straight i with hat on top space equals 0 end style
Answered by Sneha shidid | 01 Nov, 2018, 10:35: AM

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CBSE 12-science - Maths
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