I want to do this avoiding Square roots, cos sin or tangents if possible!!! Or at least minimise their use...
2006-08-29 07:20:40 · 8 answers · asked by question_poser 2 in Science & Mathematics ➔ Mathematics
The simple answer is no. If you have two vectors written in polar notation and you want to add them, you pretty much have to go through the rectangular description of those vectors. The trig functions and square roots simply cannot be avoided. Addition and subtraction are defined in the rectangular system. The conversion back and forth to the polar description requires the trig functions, etc. This *is* the easy way!
2006-08-29 10:07:02 · answer #1 · answered by mathematician 7 · 2⤊ 0⤋
you could not purely upload up 2 numbers with diverse powers; you first ought to certain between the numbers interior a similar power as the different is; on your get mutually, you could say: 3*10^5 into 30*10^4; then you truthfully can purely upload up the numbers: (30+4.5)*10^4 = 34.5*10^4 and change that into perfect clinical notation back: 34.5*10^4 = 3.40 5*10^5 No concept how your instructor were given 4.5..... Subtraction works a similar as addition. Multiplication and branch are really less difficult; you could purely turn all the numbers into clinical notation, then do your operation - multiplication or branch - with the numbers and the powers, one after the different. For powers with equivalent base (base 10 in clinical notation), you could purely upload up the powers in multiplication and subtract them in branch, e.g.: 10^2 * 10^5 = 10^(2+5) = 10^7 10^2/10^5 = 10^(2-5) = 10^-3 i wish you're in a position to do the most suitable issues your self with the following assistance.
2016-12-05 21:50:24 · answer #2 · answered by douse 3 · 0⤊ 0⤋
if you stay in polar notation, then you will HAVE to use trigonometry functions to make additions and substraction, except, of course, when the 2 vectors are colinear or perpendicular. But then, you'll only be using them without knowing it.
2006-08-29 07:25:04 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Only if the vectors are all pointing in the same or opposite directions, then you and add and subtract vectors.
2006-08-29 08:20:55 · answer #4 · answered by Brenmore 5 · 0⤊ 1⤋
If you spent as much time actually studying the trig functions, roots, etc. as you waste trying to figure out how to get away with not using them, you'd have it figured out bt now.
Doug
2006-08-29 08:27:15 · answer #5 · answered by doug_donaghue 7 · 0⤊ 2⤋
umm okay im confuzzled now
2006-08-29 07:24:13 · answer #6 · answered by Smellyteddy 3 · 0⤊ 1⤋
You can't, sorry!
2006-08-29 07:31:08 · answer #7 · answered by anonymous_dave 4 · 0⤊ 0⤋
eh?
2006-08-29 07:34:23 · answer #8 · answered by dean h 1 · 0⤊ 1⤋