I've been working at proving these identites and I just can't seem to figure them out, some of them just come to me others I work on them for 10 mintues or more and just get more and more bogged down.:frown:
1) csc2x + cot2x = cotx so far i have
1/sin2x + cos2x/sin2x = cosx/sinx...
Each intersection has a traffic signal and the speed limit it 50km/h. Suppose you are driving from west at speed limit. When you are 10m from the first intersection all lights turn green. The lights are green for 13 seconds each. (a) calculate time needed to reach third stop light. Can you make...
I really need some help solving these two questions. Any help is appreciated!
1) A tapered(non-uniform) power pole has a mass of 350 kg and a length of 12.2m. A cable attached to the smaller end has a tension of 1110N just as the end is about to ris from the ground. Where would the cable have...
For one separate it into vertical and horizontal components. That should help you out. Oh don't worry I've done that, it doesn't help.
The first one seems wrong and when you get the time wrong, then everything else goes kaboom. Yeah i figured that out too, it messes everything up!
:mad:
Please any form of help would be great! Me and two friends tried to solve these problems today and we tried for more then an hour and still did not get the correct answers. I'm not asking that you just flat out give me the answers but just help me through it and give me some tips on how to solve...