Дано $$frac{sin{left (a + 45 right )} – cos{left (a + 45 right )}}{sin{left (a + 45 right )} + cos{left (a + 45 right )}}$$ Подстановка условия $$frac{sin{left (a + 45 right )} – cos{left (a + 45 right…
Дано $$frac{tan^{2}{left (a + 45 right )} – 1}{tan^{2}{left (a + 45 right )} + 1}$$ Подстановка условия $$frac{tan^{2}{left (a + 45 right )} – 1}{tan^{2}{left (a + 45 right )} + 1}$$ (tan(45 + (3))^2 – 1)/(tan(45 + (3))^2…
Дано $$frac{4 + 27^{- n} 3^{n}}{- n + 81}$$ Степени $$frac{4 + 3^{- 2 n}}{- n + 81}$$ -n 4 + 9 ——- 81 – n $$frac{4 + 9^{- n}}{- n + 81}$$ -n 4 + 9 ——- 81 –…
Дано $$- 8 sin^{2}{left (a right )} cos^{2}{left (a right )} + 1$$ Подстановка условия $$- 8 sin^{2}{left (a right )} cos^{2}{left (a right )} + 1$$ 1 – 8*sin((-2))^2*cos((-2))^2 $$- 8 sin^{2}{left ((-2) right )} cos^{2}{left ((-2) right )}…
Дано $$- sin{left (x – 45 right )} cos{left (x + 45 right )} + sin{left (x + 45 right )} cos{left (x – 45 right )} – 1$$ Подстановка условия $$- sin{left (x – 45 right )} cos{left (x…
Дано $$a^{2} left(25 a^{2} – 9right) left(- frac{a}{5} + frac{a}{5} – 3 + 3right)$$ Подстановка условия $$a^{2} left(25 a^{2} – 9right) left(- frac{a}{5} + frac{a}{5} – 3 + 3right)$$ ((1/3)^2*(25*(1/3)^2 – 9))*((1/3)/5 – 3 – (1/3)/5 + 3) $$(1/3)^{2} left(25…
Дано $$9$$ Численный ответ 9.00000000000000
Дано $$- 6 sqrt{10} x + left(x – 3 sqrt{10}right) left(x + sqrt{90}right) + 2 left(x + sqrt{90}right)$$ Подстановка условия $$- 6 sqrt{10} x + left(x – 3 sqrt{10}right) left(x + sqrt{90}right) + 2 left(x + sqrt{90}right)$$ (sqrt(90) + (-2))*2…
Дано $$cos{left (3 x right )} cos{left (6 x right )} cos{left (12 x right )} cos{left (24 x right )}$$ Подстановка условия $$cos{left (3 x right )} cos{left (6 x right )} cos{left (12 x right )} cos{left (24…
Дано $$frac{cos{left (a right )} + 1}{cos{left (a right )}} – cos{left (a right )}$$ Подстановка условия $$frac{cos{left (a right )} + 1}{cos{left (a right )}} – cos{left (a right )}$$ (1 + cos((1/3)))/cos((1/3)) – cos((1/3)) $$frac{cos{left ((1/3) right )}…