Suppose a triangle has sides a, b, and c let theta be the angle opposite the side of length a. if cos theta < 0 what must be true? a- b^2+c^2> a^2. b- a^2+b^2=c^2. c- b^2+c^2c^2

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!