100x^2-9<=0 решите неравенство

Question

100x^2-9<=0 решите неравенство</p>

Answer 1

100x^2-9<=0</p>

100x^2<=9</p>

100x^2=9

x^2=9/100

x1=3/10, x2=-3/10

100х^2-9<=0, когда х принадлежит промежутку [-3/10; 3/10].</p>