Question

In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposite ∠B ?

x2−2x2cosβ−−−−−−−−−−−√

x2−(1−cosβ)−−−−−−−−−−−−−√

2x2−(1−cosβ)2−−−−−−−−−−−−−−√

2x2−(1−cosβ)−−−−−−−−−−−−−√

Answer 1

@HELPMEPLZ!!

Answer 2

http://openstudy.com/study#/updates/54d6a023e4b083f72f28accb

Answer 3

hope that helps

Answer 4

thanks :)

Answer 5

np:)

Answer 6

@theuser822