Optional Exercise; Visualizing Complex Zeros Of A Cubic Polynomial; Visualizing Complex Roots - Texas Instruments TITANIUM TI-89 User Manual

Optional Exercise

Optional Exercise Optional Exercise Optional Exercise
Assuming the same initial velocity of 95 feet per second, find the angle that the ball
should be hit to achieve the greatest distance.

Visualizing Complex Zeros of a Cubic Polynomial

Visualizing Complex Zeros of a Cubic Polynomial Visualizing Complex Zeros of a Cubic Polynomial Visualizing Complex Zeros of a Cubic Polynomial
This activity describes graphing the complex zeros of a cubic polynomial.

Visualizing Complex Roots

Visualizing Complex Roots
Visualizing Complex Roots Visualizing Complex Roots
Perform the following steps to expand the cubic polynomial
absolute value of the function, graph the modulus surface, and use the
explore the modulus surface.
1. On the Home screen, use the
function to expand the cubic expression
(x 1)(x
N N i)(x+i)
polynomial.
2. Copy and paste the last answer to the
entry line and store it in the function
Move the cursor into the history
Note:
area to highlight the last answer and
press ¸, to copy it to the entry line.
Activities
expand( )
and see the first
.
f(x)
, find the
(x N 1)(x N i)(x+i)
tool to
Trace
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