Find the first four terms of the binomial series for the given function.(1 - 8x2)-1/2
A. 1 + 4x2 + 24x4 + 160x6
B. 1 + 4x2 + 48x4 + 576x6
C. 1 + 4x2 + 24x4 + 288x6
D. 1 + 4x2 + 48x4 + 320x6
Answer: A
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Factor the special products.81x2 - 16
A. (9x - 4)2 B. (9x + 4)2 C. prime D. (9x + 4)(9x - 4)
Use a sum-to-product identity to rewrite the expression.sin (11t + 10) + sin (2t + 1)
A. 2
B. 2
C. 2
D. 2
Determine if the statement is a proportion.I. 
II. 
A. I is a proportion, II is not a proportion. B. I is not a proportion, II is a proportion. C. I and II are both proportions. D. Neither I nor II are proportions.
Consider a soldier facing in a given direction (say north). Let us denote "left face" by l, "right face" by r, "about face" by a, and "stand fast" by f. (The element f means "don't move from your present position." It does not mean "return to your original position.") Then we define 
and an operation 
meaning "followed by." Thus,
data-wiris-created="true" src="https://sciemce.com/media/3/ppg__cognero__5.1_Natural_Numbers__media__b7a05c3d-45f5-4d96-a61f-68bd26c98133.PNG" style="vertical-align:middle;" /> means "left face" followed by "left face" and is the same as the single command "about face." Does the set H and operation satisfy the associative property?
?
A. no
B. yes