(A) 0.86
(B) 1.43
(C) 1.80
(D) 2.17
(E) 2.52
42 . If then what is the value of x?
(A)
(B)
(C)
(D)
(E)
43 . The sum of the first 25 terms of an arithmetic sequence is 1,400, and the 25th term is 104.
If the first term of the sequence is a 1 and the second term is a 2 , what is the value of a 2 −
a 1?
(A) −3
(B) 2
(C) 4
(D) 5
(E) 844 . For all θ, sin θ + sin (θ + π) + sin (2π + θ) =