Find the reciprocal of the expression.
A. 1 - 
B. 
C. 
D. - 
Answer: C
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Tell whether the statement is true or false.cos 
= cos 
cos 
- sin 
sin 
A. True B. False
Perform the operation by applying the standard order of operations for a series of calculations.8 + 16 ÷ 4 × 2 - 3
A. 9 B. 13 C. 19 D. 29
Find the indicated root and express the answer in standard form.Square roots of -1 + i
A. 
- 
i, - 
+ 
i
B. 6 - 2i, -6 - 2i
C. 
+ i
, - 
- i
D. 
+ 
i, - 
- 
i
Solve the problem.Which has the lower present value: (a) $60,000 if interest is paid at a rate of 6.82% compounded continuously for 3 years or (b) $110,000 if interest is paid at a rate of 4.6% compounded continuously for 40 months?
A. (a) has the lower present value. B. (b) has the lower present value. C. Both (a) and (b) have the same present value.