Find the exact value in radians.cot-1 (-1)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.The sum of two numbers is 72, and twice their difference is 24. What is the smaller of the two numbers?
A. 24 B. 48 C. 42 D. 30
Mathematics
Evaluate the integral. 
A. 
+ 
sin-1 
+ C
B. 
- 
ln 
+ C
C. sin-1 
+ C
D. 
+ 
sin-1 
+ C
Mathematics
Identify the equation as either an identity or not.sin ? sec ? = cos ? csc ?
A. Identity B. Not an identity
Mathematics
Solve the problem. Round to two decimal places unless otherwise indicated.In the following formula, y is the minimum number of hours of studying required to attain a test score of x: y = 
. How many hours of study are needed to score 97?
A. 100.02 hr B. 27.85 hr C. 13.03 hr D. 130.30 hr
Mathematics