+0  
 
0
89
2
avatar+69 

1. In the coordinate plane, a line passes through the point (12, 3). Its x-intercept is A=(a, 0) where a>0 and its y-intercept is B=(0,b) whre b>0. Find the smallest possible area of triangle OAB, where O is the orgin

2. All the roots of the cubic polynomial f(x)-3x^3+bx^2+cx+d are negative real numbers. If f(0)=81, find the smallest possible value of f(1). Prove that your answer is the minimum

 May 27, 2021
 #1
avatar
0

1. The smallest possible area of triangle OAB is 64.

 

2. The smallest possible value of f(1) is 86.

 May 27, 2021
 #2
avatar+69 
0

can you explain why

imbadatmath  May 27, 2021

30 Online Users