David and muriel listed these items. what is their net worth?
2 answers:
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Equation has no true solutions.
Given:
squaring both sides
=-2y-3
+ 2y = -2y - 3
+ 2y + 4 = 0
(y+2)(y+2) = 0
y = -2
TO VERIFY:
The law cos(x+90⁰)=-sin(x) can be proved by putting y=90⁰ in the following
Formula,
cos(x+y)=cos(x).cos(y)-sin(x).sin(y)
substitute value of y in equation
gives:
-1 = 1 which is incorrect.
Therefore, There are no solutions to the equation.
Alternatively,
If (a1/a2) = (b1/b2) ≠ (c1/c2), then there will be no solution. This type of system of equations is called an inconsistent pair of linear equations. If we plot the graph, the lines will be parallel and system of equations have no solution.
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