Simplify the expression.cot x sec x sin x
A. csc2 x
B. sec2 x
C. tan2 x
D. 1
Answer: D
Mathematics
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Solve the equation.
- 9 = x
A. 
B. - 
C. 
D. 
Mathematics
Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Mathematics
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.81-3/2
A. -729
B. 
C. - 
D. 729
Mathematics
Expand.(2x2 - y)5
A. 32x10 - 80x8y + 80x6y2 - 40x4y3 + 10x2y4 - y5 B. 32x10 + 80x8y + 80x6y2 + 40x4y3 + 10x2y4 + y5 C. 32x10 - 80x8y - 80x6y2 - 40x4y3 - 10x2y4 - y5 D. 32x10 + 80x8y - 80x6y2 + 40x4y3 - 10x2y4 + y5
Mathematics