Calculus and Trigonometry Home Work

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jbegunz22

Mathematics

Description

Hello I need assistance with the Trigonometric and Calculus problems I have attached inside of the document. Please show all work. The assignment has to be typed out,

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(Systems and Matrices) 1) Solve each system by substitution. Problem: 3 x − 7 y = 15 3 x + 7 y = 15 (Systems and Matrices) 2) Find the cofactor of each element in the second row of each matrix. Problem : 1 -1 2  1 0 2     0 -3 1 (Systems and Matrices) 3) Solve each nonlinear system of equations. Give all solutions, including those with non-real complex components. Problem: x2 + y2 = 0 2 x 2 - 3y 2 = 0 (Properties of Matrices) 4) Find the values of the variables for which each statement is true, if possible.. Problem:  w x  9 17  8 -12 =  y z     
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Explanation & Answer

Hello, kindly find the attached documents. The first one contain the solution to the problems. The second one, is an outline paper explaining the steps taken.In case of any question, feel free to ask. Thank you

Running Head: SYSTEMS AND MATRICES

1

Systems and Matrices
Name
Institution
Instructor
Date

SYSTEMS AND MATRICES

2
Problem 1

3x − 7y = 15
3x + 7y = 15
Solution
Using substitution method

x=

15+7y
3

Substituting the value of x in the second equation
15 + 7y
3(
) + 7y = 15
3
15 + 7y + 7y = 15
14y = 15 − 15
14y = 0
y=0

x...


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