Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 22.5°
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
You might also like to view...
Divide.
A. 46 B. 47 C. 4.6 D. 4.7
Mathematics
Change the measurements on this scale drawing to decimals and round them to the nearest tenth of an inch. src="https://sciemce.com/media/4/ppg__tttt0623190900__f1q53g6.jpg" style="vertical-align: -17.0px;" /> in. length e is:
A. 2.3 in.
B. 2.4 in.
C. 2.2 in.
D. 2.1 in.
a 4
in. b 
in. c 
in. d 
in. e 2
Mathematics
Determine whether the improper integral is convergent or divergent.
A. Divergent B. Convergent
Mathematics
List the terms of the expression.3x3 + 6x2 - 4x + 5
A. 3x3, 6x2, -4x, 5 B. 3, x3, 6, x2, -4, x, 5 C. 3x3 + 6x2, -4x + 5 D. 3x3, 6x2, 4x, 5
Mathematics