cho tam giác ABC cân (AB=AC). Các đường phân giác BE, CF cắt nhau tại H. Chứng minh tam giác ABE = tam giác ACF

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?