Question

12sin76градус деленной на sln38градус *sin52градус

Answer 1

$frac{12 sin76^{0}}{sin38^{0}sin52^{0}}=frac{12 sin76^{0}*2}{cos14^{0}-cos90^{0}}=frac{24 sin76^{0}}{cos14^{0}}=frac{24 cos14^{0}}{cos14^{0}}=24$