Find the numerical value of the expression for 
and 
A. a) 3 b) 1
B. a) 1 b) 
C. a) 1 b) 3
D. a) 
b) 
Answer: C
Mathematics
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A. 824 mm3 B. 56 mm3 C. 412 mm3 D. 672 mm3
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A. 360 hr B. 72 hr C. 144 hr D. 42 hr
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Use the even-odd identities to find the exact value of the expression. tan (-?)
A. 1 B. -1 C. undefined D. 0
Mathematics