Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.
- tan x
A. cos x
B. tan x
C. csc x
D. cot x
Answer: D
Mathematics
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A. (-? , 0 ) B. ( -?, ? ) C. ( 0 , ? ) D. None
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+ 
x = 8
A. 
B. 
C. 
D. 
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Solve the formula for the indicated variable.I = 
, for n
A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)
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A. 
, 
B. - 
, 
C. - 
, - 
D. - 
, - 
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