Perform the requested operation or operations. Find the domain of each.f(x) = 
; g(x) = cos xFind f - g.
A. 
+ cos x; domain: [-2, ?)
B. 
; domain: [-2, ?)
C. (cos x)(
); domain: [-2, ?)
D. 
- cos x; domain: [-2, ?)
Answer: D
Mathematics
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Solve the differential equation.y' + 2y = 21
A. y = 
+ e2x + Ce-2x
B. y = 
+ Ce2x
C. y = 21 + Ce2x
D. y = 
+ Ce-2x
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Find the prime factorization of the composite number.252
A. 34 × 7 B. 23 × 32 × 7 C. 24 × 7 D. 22 × 32 × 7
Mathematics
Find the angles of the trignometric values in degrees. ? represents the unknown angle measure. sin ? = 0.388
A. 23.0° B. 25° C. 23° D. 25.0°
Mathematics
Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 18
D. 
Mathematics