Find z*w . Leave your answer in simplified polar form. Express all angles in degrees rounded to the nearest tenth. Solution:- z * w =2(cos140+i sin 140) * 7(cos65+…
Month: May 2015
Problem 714
Solve ≤ -5 Solution:- -5 ≤ -5(x-7) -5 ≤ -5x + 35 (divide both side -5) 1 ≥ x -7 ( add 7 both sides) 8 ≥ x x ≤ 8
Problem 713
Find (x3 – 5×2 -2) ÷ (x-1) using synthetic division. Solution:- x – 1 │ 1 -5 0 -2 │ 0 1 -4 -4 ——————- 1 -4 -4…
Problem 712
A fire truck is en route to an address that is six blocks east and seven blocks south of the fire station. Using the fire station as the pole and…
Problem 711
Identify the conjugate of the complex number 10 + i Solution:- The conjugate of the complex number a + bi is the complex number a – bi . 10 –…
Problem 710
The letters x and y represent rectangular coordinates. Write the following equation using polar coordinates (r, θ). y = x Solution:- x = r * cosθ y = r * sinθ give…
Problem 709
Find z*w . Leave your answer in simplified polar form. Express all angles in degrees rounded to the nearest tenth. z = 9(cos45+I sin45° ) w = 3(cos10+isin10°) Solution:- z.w…
Problem 708
Which of the following is another representation of the polar coordinate P = (8,-45°) Solution:- If point P = (r,) , it can also be written as (r,+2k)…
Problem 707
You want to make an investment in a continuously compounding account over a period of ten years. What interest rate is required for your investment to double in that time…
Problem 706
What is the length of the minor axis of the following graph? Solution:- This is an ellipse with a center at (0, 0), vertices at (-5, 0)…
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