a) 426 cm in metres and centimethe

Решите уравнение: \( \log _{3}\left(\sqrt{2} \cos \left(\frac{\pi}{2}-x\right)+\sin 2 x+81\right)=4 \) Найдите все корни этого уравненшя, принадлежашие отрезку \( \left[\pi ; \frac{5 \pi}{2}\right] \)

5) \( \frac{x+1}{3}=\frac{2 x-9}{4}+\frac{1}{6} \)

c. Find the radius of a circle with an area of \( 314 \mathrm{~mm}^{2} \). d. Find the area of a semicircle with a diameter of 12 m .

Given \( \triangle A B C \) with sides \( A B=10, A C=3, \sin B A C=0.2 \). The area of \( \triangle A B C \) is

Write the form of the partial fraction decomposition of the rational expression. \( \frac{9 x}{x^{2}\left(x^{2}+6\right)^{2}} \)