Find the sets on which f(x)>0 and f(x)<0 on the given domain. Express in interval notation. Make sure for numbers such as 2π you type in 2*pi and for 3π2 you type in 3*pi/2. For any unused answer boxes type in DNE in all capital letters.

f(x)=7cos(5x) on (0,4π/5)

f(x) >0 on (0,pi/10)u(3pi/10,9pi/10)u(7pi/10, 4pi/5)
f(x) <0 on (pi/10, 3pi/10)u(9pi/10, 7pi/10)

is this correct>
Thanks

1 answer

looks good
Similar Questions
  1. a. Find the mean, median, and range for each of the two data sets.b. Find the standard deviation using the rule of thumb for
    1. answers icon 4 answers
  2. 1. Find the mean, median, and range for each of the two data sets?2. Find the standard deviation using the rule of thumb for
    1. answers icon 4 answers
    1. answers icon 2 answers
  3. Comparing Variations:1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the
    1. answers icon 5 answers
more similar questions