Mathematics B Regents High School Examination Worksheet - The University Of The State Of New York, 2004 Page 2

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Part I
Answer all questions in this part. Each correct answer will receive 2 credits. No partial credit
will be allowed. For each question, write on the separate answer sheet the numeral preceding the
word or expression that best completes the statement or answers the question.
[
]
40
Use this space for
1 The expression cos 40° cos 10° + sin 40° sin 10° is equivalent to
computations.
(1) cos 30°
(3) sin 30°
(2) cos 50°
(4) sin 50°
sec
2 The expression
is equivalent to
csc
sin
(1) sin
(3)
cos
cos
(2) cos
(4)
sin
3 An overhead view of a revolving door is shown in the accompanying
diagram. Each panel is 1.5 meters wide.
B
C
d
A
D
What is the approximate width of d, the opening from B to C?
(1) 1.50 m
(3) 3.00 m
(2) 1.73 m
(4) 2.12 m
1
–cos x
4 What is a positive value of x for which 9
= ?
3
(1) 30°
(3) 60°
(2) 45°
(4) 90°
[2]
Math. B – Jan. ’04

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