Recent content by markm

thanks a lot. :)

that still wouldn't help because 5pi/12 has no special values (i.e. sin pi/6 = 1/2, sin pi/3 = sqrt3 / 2, etc.). it's not a special angle in the unit circle.. :(

the question is: find the exact value of tan 285 deg + cos 75 deg + cot 60 deg i tried converting them to radians and got tan 5pi / 12 + cos 5 pi / 12 + cot pi / 3 by "exact value", the question means fractions, not decimals. as far as i know, only the cot part has some special...

oh, and by exact value the question means no decimal places.

the question is: find the exact value of tan 285 deg + cos 75 deg + cot 60 deg i tried converting them to radians and got tan 5pi / 12 + cos 5 pi / 12 + cot pi / 3 as far as i know, only the cot part has some special identity. am i missing something important? we have a long test...

does coulomb's law govern magnetic attraction and replusion also? thanks

with a multimeter

hi. ^_^ we recently did this experiment on measuring the actual resistances of resistors. every time, the actual resistance was less than the resistance on the label, except for the resistors arranged in parallel. the theoretical value for 100 ohm and 220 ohm resistors is 67.5 ohms, but...