Use a calculator fo find the approximate value for the indicated function. Round to four decimal places.cos (-2.56)
A. -0.5834
B. -0.8356
C. 0.8356
D. 0.5834
Answer: B
Mathematics
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Use reduction formulas to evaluate the integral.
A. 
sin 4x - 
sin3 4x + C
B. 
sin 4x + 
sin3 4x + C
C. 
sin 4x - 
cos3 4x + C
D. 5 sin 4x - 
sin3 4x + C
Mathematics
Evaluate the expression for the given values of the variables, if possible.9 ? (-m) ? n
m = -12, n = -10
A. -208 B. -1080 C. -1170 D. -108
Mathematics
Decide on a suitable restriction on the domain so that the function is one-to-one and the range is not changed.f(x) = x4 + x2 + 16
A. (-?, 15) B. [0, ?) C. [-16, 16) D. [-16, ?)
Mathematics
Find the intercepts of the function f(x).f(x) = 2x3(x + 9)5
A. x-intercepts: 0, 9; y-intercept: 2 B. x-intercepts: 0, 9; y-intercept: 0 C. x-intercepts: 0, -9; y-intercept: 2 D. x-intercepts: 0, -9; y-intercept: 0
Mathematics