Verify the identity.
- 
= cos x - sin x
What will be an ideal response?
- 
= 
- 
= 
- 
= 
= 
= cos x - sin x
Mathematics
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Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find zw.
A. 15(cos 300° + i sin 300°) B. 50(cos 40° + i sin 40°) C. 50(cos 300° + i sin 300°) D. 15(cos 40° + i sin 40°)
Mathematics
Factor completely. If the polynomial is prime, state so.p2 - 6pq + 36q2
A. prime B. (p + 6q)(p - 6q) C. (p - 6q)2 D. (p + 6q)2
Mathematics
Evaluate without using a calculator.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Find the inverse of the matrix A, if it exists.A = 
A. A-1 does not exist.
B. A-1 = 
C. A-1 = 
D. A-1 = 
Mathematics