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