Question

16-9y²=0 рівняння....​

Answer 1

Решение:

$16-9y^{2} =0;\\\\-9y^{2} =-16;\\\\9y^{2} =16;\\\\y^{2} =\frac{16}{9} ;\\\\y_{1} =\sqrt{\frac{16}{9} } =\frac{4}{3} ;\\\\y_{2} =-\sqrt{\frac{16}{9} } =-\frac{4}{3}.$

Ответ: $y_{1} =\frac{4}{3} ; y_{2} =-\frac{4}{3}$    или    $y_{1} =1\frac{1}{3} ;y_{2} =-1\frac{1}{3}.$

Answer 2

16-9у²=0

-9у²= -16. |:(-9)

у²=16/9

$y = \pm \sqrt{ \frac{16}{9} } \\ y = \pm \frac{4}{3}$