Post Test Math Calculator

• x = - 3

• x = 2

Find the modulus for -2 + 7i

• 3.317

• 7.280

• 6.708

• 3.00

Find the argument for -2 + 7i

Convert complex number (5-2i) into polar form

• 11

• 10

• 9

• 8

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 Solve the following systems of linear equations by using the inverse matrix method OR Cramers Rule

4x + 8y + 3z = 2

3x + 5y + z = -3

x + 4y + 3z = 5

• x = 24

  y= -8

  z = -18

• x = 22 

  y= -18

  z = 18

• x = 23

  y= -18

  z = 18

• x = 25

  y= -10

  z = 18