Решение задания смотри на фотографии
3×1−4÷5−2×2.5
=−2.8 .......
Arcsin(-1)+arcsin1/2=π/2+π/6=4π/6=2π/3
Solve for x over the real numbers:
x^2+4 = 6-x
Subtract 6-x from both sides:
x^2+x-2 = 0
The left hand side factors into a product with two terms:
(x-1) (x+2) = 0
Split into two equations:
x-1 = 0 or x+2 = 0
Add 1 to both sides:
x = 1 or x+2 = 0
Subtract 2 from both sides:
Answer: |
| x = 1 or x = -2
Удачи!