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CBSE Class 12-science Answered

Question no. 26 27
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Asked by Msinha833 | 21 Aug, 2018, 02:14: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight D equals open vertical bar table row 1 cell bc plus ad end cell cell straight b squared straight c squared plus straight a squared straight d squared end cell row 1 cell ca plus bd end cell cell straight c squared straight a squared plus straight b squared straight d squared end cell row 1 cell ab plus cd end cell cell straight a squared straight b squared plus straight c squared straight d squared end cell end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared minus 2 abcd end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared minus 2 abcd end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared minus 2 abcd end cell end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar minus 2 abcd open vertical bar table row 1 cell bc plus ad end cell 1 row 1 cell ca plus bd end cell 1 row 1 cell ab plus cd end cell 1 end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar minus 0 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 space space space straight C subscript 1 space and space straight C subscript 3 space are space identical
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar
Perform space straight R subscript 2 minus straight R subscript 1 space and space straight R subscript 3 minus straight R subscript 1 space you space will space get space required space result.
end stylebegin mathsize 16px style straight D equals open vertical bar table row 1 cell bc plus ad end cell cell straight b squared straight c squared plus straight a squared straight d squared end cell row 1 cell ca plus bd end cell cell straight c squared straight a squared plus straight b squared straight d squared end cell row 1 cell ab plus cd end cell cell straight a squared straight b squared plus straight c squared straight d squared end cell end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared minus 2 abcd end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared minus 2 abcd end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared minus 2 abcd end cell end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar minus 2 abcd open vertical bar table row 1 cell bc plus ad end cell 1 row 1 cell ca plus bd end cell 1 row 1 cell ab plus cd end cell 1 end table close vertical bar
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar minus 0 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 space space space straight C subscript 1 space and space straight C subscript 3 space are space identical
straight D equals open vertical bar table row 1 cell bc plus ad end cell cell open parentheses bc plus ad close parentheses squared end cell row 1 cell ca plus bd end cell cell open parentheses ca plus bd close parentheses squared end cell row 1 cell ab plus cd end cell cell open parentheses ab plus cd close parentheses squared end cell end table close vertical bar
Perform space straight R subscript 2 minus straight R subscript 1 space and space straight R subscript 3 minus straight R subscript 1 space you space will space get space required space result.
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