What is the answer to this? and how do i do it?

you just subtract the angle u have from The total angelb

i think it might be a but you might want a second opinion

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!