Let A(2hat(i)+3hat(j)+5hat(k)), B(-hat(i...

Let `A(2hat(i)+3hat(j)+5hat(k)), B(-hat(i)+3hat(j)+2hat(k)) and C(lambdahat(i)+5hat(j)+muhat(k))` are vertices of a triangle and its median through A is equally inclined to the positive directions of the axes, the value of `2lambda-mu` is equal to

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