Question

решите плз $( frac{1}{3} * sqrt{27})^{2}- frac{1}{2}(sqrt{24})^{2}$

Answer 1

$(frac{1}{3}bulletsqrt{27})^2-frac{1}{2}(sqrt{24})^2=(frac{1}{3}bulletsqrt{3^2bullet3})^2-frac{1}{2}bullet24=\=(frac{1}{3}bullet3sqrt3)^2-12=(sqrt{3})^2-12=3-12=-9.$