Simplify the expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2
B. 2 cot2 ?
C. 0
D. -2 cot2 ?
Answer: D
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. An “exercise” can be solved by simply applying a routine procedure, but a “problem” is not routine and requires a well-thought-out plan of attack. 2. If there are infinitely many numbers involved in a problem, the Guess and Test problem-solving strategy is indicated. 3. If 12 coins are arranged in the shape of an equilateral triangle, then there are 5 coins along each side. 4. If the fourth phase of problem solving,“Looking Back,” we should look for other ways to solve the problem even if we got the ‘right’ answer. 5. When you are asked to make a generalization, you should use the Guess and Test problem-solving strategy.
Make a line graph using the given frequencies.A medical research team studied the ages of patients who had strokes caused by stress. The results of 34 patients are as follows: 
?
A. 
B. 
C. 
D. None of the above
Use the given graph of the polynomial function to estimate the x-intercepts.
A. -3, 1, 2 B. -2, 1, 3 C. -2, 3 D. -2, 1
Perform the conversion. Round to the nearest hundredth when necessary.68.3 m to yd
A. 224.02 yd B. 74.45 yd C. 62.43 yd D. 20.83 yd