Emily G.
asked • 02/17/21Find answer is A+k\2pie and B+k/2pie where k is any integer and 0<A<B< pie/2.
Mark M. answered • 02/17/21
Retired Math prof with teaching and tutoring experience in trig.
sec(4x) = 2 so cos(4x) = 1/2
4x = π/3 + 2kπ or 5π/3 + 2kπ
x = π/12 + kπ/2 or 5π/12 + kπ/2
Get a free answer to a quick problem.
Most questions answered within 4 hours.
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
