Use a power-reducing identity to find the exact value of the expression.tan2 (112.5°)
A. 3 + 2
B. 3
C. 7 + 4
D. 7 - 4
Answer: A
Mathematics
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Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; 
B. converges; 
C. diverges
D. converges; 
Mathematics
Solve the application problem by adding integers.The temperature at 5 p.m. on January 24 was -12° Fahrenheit. By 8 p.m. the temperature had risen 14 degrees. Find the temperature at 8 p.m.
A. -26° B. -2° C. 2° D. 26°
Mathematics
Write the expression in terms of sines and/or cosines, and then simplify.tan x csc x
A. 1 B. sec x C. cos x D. csc x
Mathematics
Solve the problem.In one year, a baseball player got 136 hits in 362 times at bat. What was his batting average? Give decimal notation to the nearest thousandth.
A. 0.376 B. 0.379 C. 0.386 D. 0.356
Mathematics