Use half-angle identities to find the exact value of the expression.tan 
A. 
B. 2 + 
C. 
D. 2 - 
Answer: D
You might also like to view...
The value V, in dollars, of a certain investment after t years is given in the table below. Use exponential regression to determine the percentage decrease in the value of the investment over any 5-year period. Round your answer to two decimal places. t 1 4 7 10 13 V 1,923.61 1,267.27 835.09 550.22 362.38?
A. 65.60% B. 65.00% C. 50.16% D. 51.12%
Factor by grouping.t(4 - m) - s(m - 4)
A. (m - 4)(t + s) B. (4 - m)(t + s) C. (4 - m)(t - s) D. (4 + m)(t + s)
Solve the problem. Round your answer to two decimal places if necessary.What is 0.8% of 9,000?
A. 72 B. 7 C. 7,200 D. 720
Solve the problem.The number of dislocated electric impulses per cubic inch in a transformer when lightning strikes is given by d(x) = 1800(4)x, where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at 
and 
A. 1800; 460,800 B. 1800; 28,800 C. 7200; 28,800 D. 1800; 14,400