math gurus, need help with trigonometry

[VINCENT 2 FLY]

ok the book doesn't explain how to break this down...

107º54'+37º49'

i know how to break 90º down, but not 107º

do i just bring down 107º and write 54' over 60 minutes?

thanks!

[Jeebus]

lol, trigs fucking me to. To top it off I missed my last class on saturday because I was up all night playing rockband and drinking. Now Im gonna be behind:(

edit: On a side note, I cant help you vincent:(

[VINCENT 2 FLY]

man, i get the gist of it, but my teacher has a heavy accent, so its 10x harder, but reading the book helps.

[jimmyintegra95]

i think it should be 145 degree and 43 second....i might get it wrong since i had that class approx....3 years....

[THEPHILOSOPHER]

(107+34 = 144 degrees)+
(54/60 + 49/60 = 1 43/60) = 145 43/60 degrees or 145 degrees and 43 minutes or 8743π/10800 radians.

[trill]

me + you = 69

[THEPHILOSOPHER]

I separated the whole numbers (degrees) from the fraction part (minutes) to add the mixed number. Much like adding 1 2/3 + 2 2/3 = 3 + 4/3 or 4 1/3.

[VINCENT 2 FLY]

how did you get 43 (1.71)?

[THEPHILOSOPHER]

54/60 + 49/60 = 103/60 = 1 (103-60)/60 = 1 43/60

[VINCENT 2 FLY]

thx a lot, i might need help on some other stuff also

[THEPHILOSOPHER]

You're taking college trig, I assume?
Which book are you using, and where are you taking it?

[THEPHILOSOPHER]

PS: If you use a Ti-83+ or higher it can add in degrees, minutes, and seconds.

[VINCENT 2 FLY]

i have a casio scientific calculator, i do not have the money for a ti, haha

yes i am, math is my least favorite subject, haha.

i am taking it at north harris and i am using the trigonometry 8th edition (picture of an eagle on the cover)

i have another that i need help with, now we have seconds...
180º-85º36'2"

[Davey_Disaster]

good luck man. I suck at math. Intermediate Algebra FTL....

[brainneeded]

i have a casio scientific calculator, i do not have the money for a ti, haha

yes i am, math is my least favorite subject, haha.

i am taking it at north harris and i am using the trigonometry 8th edition (picture of an eagle on the cover)

i have another that i need help with, now we have seconds...
180º-85º36'2"

it's lone star college now. :o

[THEPHILOSOPHER]

180º = 180 + 0/60 + 0/3600
85º36'2" = 85 + 36/60 + 2/3600

I need to turn 2 degrees (in 180) into minutes and seconds (so I have enough of each to work with, I'll turn 1 degree in to 60 minutes and the other into 3600 seconds.)

180º = 178 + 60/60 + 3600/3600
85º36'2" = 85 + 36/60 + 2/3600

Now subtract 178-85 = 93
60/60 - 36/60 = 24/60
3600/3600 - 2/3600 = 3598/3600

Leaving me with: 93º24'3598" which is correct, but not simplified. To simplify I need to find the one degree that's missing.

3598/60 = 59.96666666... Which means 59 more minutes.

But how many seconds am I left with?
Well it's 3598 - (60*59 = 3540) = 58

Leaving me with: 93º(24+59)'58" = 93º83'58" = 94º23'58"

[omgodzilla]

180º = 180 + 0/60 + 0/3600
85º36'2" = 85 + 36/60 + 2/3600

I need to turn 2 degrees (in 180) into minutes and seconds (so I have enough of each to work with, I'll turn 1 degree in to 60 minutes and the other into 3600 seconds.)

180º = 178 + 60/60 + 3600/3600
85º36'2" = 85 + 36/60 + 2/3600

Now subtract 178-85 = 93
60/60 - 36/60 = 24/60
3600/3600 - 2/3600 = 3598/3600

Leaving me with: 93º24'3598" which is correct, but not simplified. To simplify I need to find the one degree that's missing.

3598/60 = 59.96666666... Which means 59 more minutes.

But how many seconds am I left with?
Well it's 3598 - (60*59 = 3540) = 58

Leaving me with: 93º(24+59)'58" = 93º83'58" = 94º23'58"

wut

[VINCENT 2 FLY]

180º = 180 + 0/60 + 0/3600
85º36'2" = 85 + 36/60 + 2/3600

I need to turn 2 degrees (in 180) into minutes and seconds (so I have enough of each to work with, I'll turn 1 degree in to 60 minutes and the other into 3600 seconds.)

180º = 178 + 60/60 + 3600/3600
85º36'2" = 85 + 36/60 + 2/3600

Now subtract 178-85 = 93
60/60 - 36/60 = 24/60
3600/3600 - 2/3600 = 3598/3600

Leaving me with: 93º24'3598" which is correct, but not simplified. To simplify I need to find the one degree that's missing.

3598/60 = 59.96666666... Which means 59 more minutes.

But how many seconds am I left with?
Well it's 3598 - (60*59 = 3540) = 58

Leaving me with: 93º(24+59)'58" = 93º83'58" = 94º23'58"

:thumb:

[black*DC*]

:confused:

[NgoFcukinWay]

180º = 180 + 0/60 + 0/3600
85º36'2" = 85 + 36/60 + 2/3600

I need to turn 2 degrees (in 180) into minutes and seconds (so I have enough of each to work with, I'll turn 1 degree in to 60 minutes and the other into 3600 seconds.)

180º = 178 + 60/60 + 3600/3600
85º36'2" = 85 + 36/60 + 2/3600

Now subtract 178-85 = 93
60/60 - 36/60 = 24/60
3600/3600 - 2/3600 = 3598/3600

Leaving me with: 93º24'3598" which is correct, but not simplified. To simplify I need to find the one degree that's missing.

3598/60 = 59.96666666... Which means 59 more minutes.

But how many seconds am I left with?
Well it's 3598 - (60*59 = 3540) = 58

Leaving me with: 93º(24+59)'58" = 93º83'58" = 94º23'58"

I understand the first half, but kinda understanding the 2nd part.

[THEPHILOSOPHER]

The second half is misleading because I know that 3598" = 1º - 2"= 59'58"

I loathe degrees minutes, seconds - radians ftw. 94º23'58" = 169919π/324000 radians. :lol:

[VINCENT 2 FLY]

wait the problem had a minus sign, haha

[E-DUBB]

wut

LOL WUT

[OdyOwnage]

Couldn't a simple CASIO do this problem...?

I :rofl: at these threads because the people that aren't post whores like me and Jeebus start posting on these topics.

The TRUE geniuses behind H-I... :eek:

[VINCENT 2 FLY]

wait the problem had a minus sign, haha

???

[winc281]

i have a casio scientific calculator, i do not have the money for a ti, haha

yes i am, math is my least favorite subject, haha.

i am taking it at north harris and i am using the trigonometry 8th edition (picture of an eagle on the cover)

i have another that i need help with, now we have seconds...
180º-85º36'2"

i have an extra calc I can sell you for cheap..pretty sure its a ti 84..lmk if youre interested..I stay close to NH too

[crxhoutx]

I need to turn 2 degrees (in 180) into minutes and seconds (so I have enough of each to work with, I'll turn 1 degree in to 60 minutes and the other into 3600 seconds.)

180º = 178 + 60/60 + 3600/3600


180=179 + 59/60 + 60/3600

might be easier

[jimmay]

vincent, is singh your professor?

[THEPHILOSOPHER]

Now subtract 178-85 = 93
60/60 - 36/60 = 24/60
3600/3600 - 2/3600 = 3598/3600

Leaving me with: 93º(24+59)'58" = 93º83'58" = 94º23'58"

wait the problem had a minus sign, haha

[THEPHILOSOPHER]

180=179 + 59/60 + 60/3600

might be easier

True, but if I were going to do this problem:

I know I need 0 seconds in 180 so I need 58 more.
Which, makes a minute and I need to have 0 minutes in 180 so I need 23 more.
Which makes one degree and I need 94 more of those to make 180 degrees.

[qumanramos]

if YOU EVER want to subtract degrees and leave them in deg min sec form.

then do this


90 deg = 89 deg 59 min 60 sec

then if u want to convert into decimal divide seconds by 60, add to the minutes because now the decimals are minutes, then divide that by 60 and that gives you degrees.

Easy stuff since I had to take a whole class on just surveying which is all triangulation. I didn't even take trig. laters

[zentrandi]

wow, i realize now what i totally missed out being a math major...