Perform the Operation $a + b i$ $( - 6 + \sqrt { - 81 } ) - ( - 3 - \sqrt { - 64 } )$

question 262

Essay

Perform the operation. Write the answer in the form $a + b i$ . $( - 6 + \sqrt { - 81 } ) - ( - 3 - \sqrt { - 64 } )$

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Definitions:

Denseness

In mathematics, it describes a property of a set in which every point in a given space is a limit point of some sequence in the set.

Residual Plot

A graphical representation showing the residuals (the differences between observed and predicted values) on the vertical axis and the independent variable or predicted values on the horizontal axis, used to assess model fit.

Explanatory Variable

A variable in statistical analysis that is believed to influence or cause changes in another variable, often tested for effect.

Regression Analysis

A set of statistical processes for estimating the relationships between a dependent variable and one or more independent variables.