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sfcsullivan9466
23.07.2019 •
Mathematics
Which determinants can be used to solve for x and y in the system of linear equations below? 4x+16y=-68 12x+3y=21
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Ответ:
I'm assuming that you can solve these things. The top determinant comes to -180. The x value comes to - 540. When divided by the top one x = 3
The bottom determinant (y) comes to 900 and when divided by - 180 makes y = - 5. The checks out with actually solving the system of equations some other way.
Ответ:
log (ab) = log(a) + log(b)
log (a/b) = log(a) - log(b)
log (a^n) = n*log(a)
In this way by taking the log of entire function we can break it up into more simple terms before trying to take the derivative.
But we must take log of BOTH sides.
Expand Right side
Now lets review derivative of natural log:
Take derivative of both sides:
Solve for dy/dx by multiplying by "y". (Note y is original function)