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If y=|(f(x),g(x),h(x)),(l, m, n),( a, b,...

If `y=|(f(x),g(x),h(x)),(l, m, n),( a, b, c)|`, prove that `(dy)/(dx)=|(fprime(x),gprime(x),hprime(x)),(l, m, n),( a, b, c)|`

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Given that `y=|(f(x),g(x),h(x)),(l, m, n),( a, b, c)|`

`dy/dx=|(f'(x),g'(x),h'(x)),(l, m, n),( a, b, c)|+|(f(x),g(x),h(x)),(0, 0, 0),( a, b, c)|+|(f(x),g(x),h(x)),(l, m, n),( 0 ,0 ,0)|`

`dy/dx=|(f'(x),g'(x),h'(x)),(l, m, n),( a, b, c)|+0+0`

`dy/dx=|(f'(x),g'(x),h'(x)),(l, m, n),( a, b, c)|`
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