Simplify the expression by using a sum or difference identity.sin 14° cos 31° + cos 14° sin 31°
A. 
B. 
C. 
D. 
Answer: D
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Write the quotient in the standard form.
A. -i B. 1 C. -1 D. i
Add.9n5 - 5n3 + 2
A. 8n5 + 3n3 + 3 B. 15 - 11n5 + 10n3 C. 14n8 D. 15n5 - 11n3 + 10
Use a factor pair table to find all of the factor pairs of each number.72
A. 1 and 72; 2 and 36; 3 and 24; 4 and 18; 6 and 12; 8 and 9 B. 1 and 72; 2 and 36; 3 and 24; 4 and 18; 6 and 14; 9 and 12 C. 1 and 72; 2 and 36; 3 and 24; 4 and 18; 5 and 12; 6 and 9; 7 and 8 D. 1 and 72; 2 and 36; 3 and 24; 4 and 12; 6 and 9; 8 and 8
Select a right triangle corresponding to the trigonometric function of the acute angle ?. Use the Pythagorean Theorem to determine the third side and then find the other five trigonometric functions of ?.
?
tan ? = 
?
?
sin ? = 
csc ? = 
cos ? = 
sec ? = 
tan ? = cot ? = 
?
A. ?
sin ? =  | csc ? =  |
cos ? =  | sec ? =  |
tan ? =  | cot ? =  |
?
B. ?
sin ? =  | csc ? =  |
cos ? =  | sec ? =  |
tan ? =  | cot ? =  |
?
C. ?
sin ? =  | csc ? =  |
cos ? =  | sec ? =  |
tan ? =  | cot ? =  |
?
D. ?
sin ? =  | csc ? =  |
cos ? =  | sec ? =  |
tan ? =  | cot ? =  |
?
E. ?
sin ? =  | csc ? =  |
cos ? =  | sec ? =  |
tan ? =  | cot ? =  |
?