If Y = sX and Z = tX, where all the let...

If `Y = sX and Z = tX`, where all the letters denotes the functions of x and suffixes denotes the differentiation wr.t x then prove that `|(X,Y,Z),(X_1,Y_1,Z_1),(X_2,Y_2,Z_2)|=X^3|(s_1,t_1),(s_2,t_2)|`

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