The answer depends on the problem(s) facing you. For some, the answer will lie in trigonometry while for others in calculus.
You need to be more specific what engineer are you looking for?
Trig, because it's harder, which will prepare you better
No It Doesnt as planes need more time to prepare as more people will be held in them
Calc is a good class to take regardless of your career interests
You may not need to, but learning more about anything will make your a better employee and more employable.
doctor,because of the ageing population more people need more doctors whereas the need for engineers is staying the same
I have no clue I really need to know too,when you find out tell me :)
Iam engineer but iam need to support my theory with information
yes, math is useful. But you probably won't need higher then 1st year calc
yes. because i am a engineer!!!
what quolifaction do u need to become a solar engineer
You need to have mechanical skills to be able to apply for a maintenance engineer job. You need to know how to work on machines if they break down and be able to troubleshoot it. The more mechanical skills you have the better you will do at the job.