Verify the identity.sin 4x = (4 sin x cos x)(2 cos2 x - 1)
What will be an ideal response?
sin(4x) = 2 sin 2x cos 2x = (4 sin x cos x)(2 cos2 x - 1).
Mathematics
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Use an Euler diagram to determine whether the argument is valid or invalid.Eric is older than Camille.Camille is older than Todd.Therefore, Todd is younger than Eric.
A. valid B. invalid
Mathematics
Provide an appropriate response.Multiply and simplify: 4x(x + 1)2
What will be an ideal response?
Mathematics
Solve the equation.
+ 
= 
A. { -3 }
B. 
C. ?
D. { -5 }
Mathematics
The following table shows the study time for a particular chapter in a calculus class and the corresponding test grade for that chapter.
a) Using the data points (60, 83) and (300, 95) to find a linear function that fits the data.
(b) Use the linear function to predict the test grade for a student who studies 240 min.
Mathematics