The inverse of the coefficient matrix is given for the system of equations. Use the inverse matrix to solve the system.
; A-1 = - 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Write an equation for the tangent line to the curve 
at the point 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 
D. 
+ 
= 
Mathematics
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(2t)i + 2ln(t - 7)j - 
k
A. v(0) = -2i - 
j
B. v(0) = -
j
C. v(0) = 
j
D. v(0) = 2i - 
j
Mathematics
Add or subtract as indicated.
+ 
A. 
B. 
C. 
D. 
Mathematics
Determine which, if any, of the three given statements are equivalent.a.It is not true that I do not exercise daily and I stay healthy.b.I do not exercise daily and I stay healthy.c.I exercise daily or I do not stay healthy.
A. a and b B. b and c C. none D. a and c
Mathematics