Prove the identity.tan-1x = cos-1 
What will be an ideal response?
| tan-1 x | cos-1  |
| cos(tan-1 x) | cos |
 ? |  |
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Find the limit.
sec-1 x
A. - 
B. 
C. ?
D. 0
Construct an extended frequency distribution for the set of numbers and calculate the mean of the grouped data. Follow the instructions for class width.Use a class width of 0.10 beginning at 0.00. (Hint: The first class is 0.00 - 0.09.)0.620.920.620.610.270.280.270.270.010.010.790.090.770.270.100.720.610.190.720.270.710.110.260.760.92?????
What will be an ideal response?
Find the Jacobian 
or 
(as appropriate) using the given equations.
A. -2250 B. -75 C. -30 D. 75
In a test flight of the McCord Terrier, McCord Aviation's experimental VTOL (vertical takeoff and landing) aircraft, it was determined that t sec after liftoff, when the craft was operated in the vertical takeoff mode, its altitude (in feet) was
?
.
?
Find an expression for the craft's acceleration at time t.
?
A. 
B. ?
C. ?
D. ?
E. ?