Simplify the expression.
A. 
B. 0
C. 
D. 
Answer: D
Mathematics
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Solve.
= 
A. 
B. - 
C. ?
D. 
Mathematics
Solve.?x? = 6
A. -6 B. -6, 6 C. 6 D. 36
Mathematics
Prove the identity.cot x sec4 x = cot x + 2 tan x + tan3 x
What will be an ideal response?
Mathematics
Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.
x = 21 - x
A. ln 
- ln 2 ? -0.560
B. 
? 0.838
C. 
? 1.051
D. 
? 1.193
Mathematics