Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
a = 20, c = 52; find b
A. 3104
B. 48
C. 2704
D. 4
Answer: B
Mathematics
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Use the Second Derivative Test to find the relative extrema, if any, of the function 
a. Rel. max. f(?3) = 22, rel. min. f(2) = ?73 b. Rel. max. f(?2) = 39, rel. min. f(3) = ?86 c. Rel. max. f(3) = 86, rel. min. f(?2) = ?39 d. Rel. max. f(2) = 73, rel. min. f(?3) = ?22
Mathematics
Find the LCM.30 and 270
A. 30 B. 540 C. 810 D. 270
Mathematics
Use the given information to find the exact value of the trigonometric function.sin ? = 
, tan ? > 0
Find cos 
.
A. 
B. 
C. 
D. 
Mathematics