Complete the identity.(sin x + cos x)2 = ?
A. sin 2x
B. 1 + cos 2x
C. 1 + sin 2x
D. 1 - cos 2x
Answer: C
Mathematics
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Find the domain and range of the relation.{(-4,-8), (-2,2), (-8,9), (-8,5)}
A. D = {-2, -4, -8, -8}; R = {2, -8, 9, 5} B. D = {-2, -4, -8, 8}; R = {2, -8, 9, 5} C. D = {2, -8, 9, 5}; R = {-2, -4, -8} D. D = {-2, -4, -8}; R = {2, -8, 9, 5}
Mathematics
Given the terms of a finite sequence, classify it as arithmetic, geometric, or neither.3, 9, 27, 81, 243
A. Arithmetic B. Neither C. Geometric
Mathematics
Find the best buy (based on cost per unit).Brand A: 18 oz for $10.62Brand B: 15 oz for $8.25
A. Not enough information B. Brand B C. Brand A D. Equal value
Mathematics
Divide and express the result in standard form.
A. 4 - 2i
B. 
+ 
i
C. 
- 
i
D. 4 + 2i
Mathematics