Texas Instruments TI-83 - 6.6 Sinusoidal Graphs; Sinusoidal Curve Fitting; Example 10 Finding the Sine Function of Best Fit; 7.5 The Inverse Trigonometric Functions (I); Example 3 Finding an Approximate Value of an Inverse Sine Function

Now type / 1 2 ) Hit ENTER to obtain the result shown in
Figure 32. w
6.6 Sinusoidal Graphs; Sinusoidal Curve Fitting
EXAMPLE 10 Finding the Sine Function of Best Fit
Use a graphing utility to find the sine function of best fit for the
data in Table 11 on page 429.
SOLUTION To draw the scatter diagram follow the same steps as those
presented in Section 1.7. To find the sinusoidal function of best
fit, follow the same procedure as that presented in Section 5.8 (this
section shows how to store the function of best fit in
1
Y ) except
you should select C: SinReg under the STAT, CALC menu:
w
7.5 The Inverse Trigonometric Functions (I)
EXAMPLE 3 Finding an Approximate Value of an Inverse Sine Function
Find the approximate value of:
(a)
3
1
sin
1−
SOLUTION Set the MODE to radians. From the HOME screen, press the
1
sin
−
button. This is a 2
1
sin
−
is accessed
by pressing 2
nd
sin