Find any values of the variable for which the expression is undefined.
A. 
B. 
C. 
D. none of these
Answer: D
Mathematics
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Solve the differential equation subject to the initial conditions.x
+ y = cos x; x > 0; x = ? when y = 1
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
One of sin x, cos x, and tan x is given. Find the other two if x lies in the specified interval.tan x = 
,
x in 
A. sin x = 
, cos x = 
B. sin x = - 
, cos x = - 
C. sin x = 
, cos x = 
D. sin x = - 
, cos x = - 
Mathematics
Graph.f(x) = 
x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 45°, find the exact length of US. 
A. 0
B. 
C. 1
D. 
Mathematics