Determine whether B is the inverse of A.A = 
, B = 
A. Yes
B. No
Answer: A
Mathematics
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Use the Trapezoidal Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Find the indicated vector.Let u = 
, v = 
. Find u + v.
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the indicated trigonometric function of ?.tan ? = 
, 180°< ? < 270°Find cos ?.
A. 
B. - 
C. -8
D. 
Mathematics
Evaluate the expression for the given values of the variables, if possible.-
, for a = 25, b = 15
A. -20 B. -24 C. 18 D. 20
Mathematics