Simplify the expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2 cot2 ?
B. 0
C. -2 cot2 ?
D. 2
Answer: C
Mathematics
You might also like to view...
Perform the indicated operations.
A. - 
B. 
C. 
D. - 
Mathematics
State the degree of the polynomial equation.x3 + 7x2 - x - 7 = 0
A. 6 B. 4 C. 5 D. 3
Mathematics
Use the graph or table to determine a solution of the equation. Use synthetic division to verify that this number is a solution of the equation. Then solve the polynomial equation.x3 + 9x2 + 26x + 24 = 0
A. -2; The remainder is zero; -2, -3, and 4, or {-3, -2, 4} B. -2; The remainder is zero; -2, -3, and -4, or {-4, -3, -2} C. -2; The remainder is zero; 2, -3, and -4, or {-4, -3, 2} D. -2; The remainder is zero; -2, 3, and -4, or {-4, -2, 3}
Mathematics
Find the real solutions of the equation.x4 - 26x2 + 25 = 0
A. {-26, 26} B. {-25, 25} C. {-5, 5} D. {-1, 1, -5, 5}
Mathematics