Pure math 2/3

First simplify cos(3x)cos(x) using the expansions of cos(3x + x)
and cos(3x − x), then integrate and solve expression.

• 3

• 1/2

• 1/6

• no correct answer

• 1

• no correct answer

Match the one correct pair

• tan^(-1) (x) - x +c

you want free points? then let's check if you are lucky, using integration find correct answer

• 😃

• 😏

• x = 2^(1/2)
  p = 3.40

• x = 2^(1/3)
  p = 3.40

• x = 2^(1/3)
  p = 3.51

• x = 2^(1/2)
  p = 3.51

solve.

find area.