Question

Помогите с решением тригонометрического уравнения

Answer 1

$\frac{24*( sin^{2}17 ^{0} - cos^{2} 17^{0} )}{cos 34^{0} } = \frac{-24*( cos^{2} 17^{0} - sin^{2} 17^{0} )}{cos 34^{0} } = \frac{-24*cos(2* 17^{0} )}{cos 34^{0} } = \frac{-24cos 34^{0} }{cos 34^{0} }$
=-24

Answer 2

$\frac{24(sin^{2}17-cos^{2}17)}{cos34}= \frac{-24(cos^{2}17-sin^{2}17)}{cos34}= \frac{-24*cos34}{cos34}=-24.$