Find the exact value by using a half-angle identity.sin 
A. 
B. - 
C. 
D. - 
Answer: A
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Solve the problem.A bullet is fired with a muzzle velocity of 1444 ft/sec from a gun aimed at an angle of 34° above the horizontal. Find the horizontal component of the velocity.
A. 1197 ft/sec B. -1225 ft/sec C. 974.0 ft/sec D. 807.5 ft/sec
Using the Venn diagram in the figure, specify which regions are described by each expression:
?
, 
?
?
describes the region number __________.
?
describes the region number __________.
What will be an ideal response?
Find all solutions of the equation in the complex number system.x3 + 1 = 0
A. {-1}
B. {-1, 
+ 
, 
- 
}
C. {-1i, 
+ 
i, 
- 
i}
D. {-1, 
+ 
i, 
- 
i}
Solve the problem.The two equal sides of an isosceles triangle measure three feet. Let the angle between the sides measure ?. Find the area A of the triangle as a function of 
. The answer may include more than one trigonometric function.
What will be an ideal response?