tan(180+0)....why the angle lies in third quadrant............???why we r giving weightage to 0......

- anonymous

- schrodinger

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- anonymous

i mean to say that.....tan(180+0) and tan(180-0) lie in 3rd and 2nd quadrant respectively ..why????......or u state in what quadrant they lie

- anonymous

i.e.tan(180) is in which quad????????

- anonymous

Siddharth, its not necessary that you will have to give weightage to the 0 degree

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## More answers

- anonymous

If you don't give that "weightage" you end up with the answer -0

- anonymous

Which is the same as 0

- anonymous

i m not concerned as to get correct answer........just wanna clear ma basics!!!!!!!!!!!

- anonymous

180 is not in a quadrant. It's on the x axis.

- anonymous

So is it clear now?

- anonymous

nope.........

- anonymous

just answer taht which quadrant 180 degrees lie in?

- anonymous

*that

- anonymous

If start on the x axis pointing in the positive x direction, and you rotate 180 degrees you will end up on the x axis pointing in the negative x direction.

- anonymous

It doesn't lie in a quadrant. It is on the x axis.

- anonymous

Which quadrant is the negative x axis on?

- anonymous

Or you can also say it lies on \[i^2\]

- anonymous

cant really get....but thanx

- anonymous

What is it that you don't understand?

- amistre64

i wonder if the : tan(a +- b) makes a difference with it

- anonymous

hmmmm

- amistre64

probably not, but I havent ruled it out :)

- anonymous

so u guyz are a lil confused too.......

- amistre64

where did you get your "fact" that these are in quadrants?

- anonymous

i guess the sitution is same as we define the left and right side limit

- anonymous

:)

- anonymous

from trigonometry....................i think so

- anonymous

Siddharth you are not getting the tone of amistre

- amistre64

from a guy named trigonometry? or a textbook about trigonometry :)

- anonymous

every angle lies in a specific quadrant and that is 4 sure!!

- anonymous

Amistre meant that no one mentioned 180 degree lies in a quadrant

- anonymous

it may be bcoz amistre is a honourable man...nd i m a lad who has just started to widen his thinking

- anonymous

the angle 180 degree lies along the negative direction of x-axis not in a quadrant

- amistre64

0 is a special number; it has odd behaviours that are not like the other numbers, therefore they = 0 line and the x = 0 line do not apply to a quadrant, they are outside of any quadrants and apart of all quadrants...

- anonymous

so..?

- amistre64

so we cannot define the y=o axis and the x = 0 axis as part of a specific quadrant

- anonymous

but we must be able to judge that which quadranr does 180 lies in..........

- amistre64

we must? why? it lies in the realm of the "0".. that is where it is :)

- anonymous

no quadrant...........

- anonymous

Actually the thing is obvious to those who are in contact with trigonometry for a long time. But to siddharth its like the case of georg cantor, questioning how big is infinity.
Please don't take it personally, I am just joking

- anonymous

Sid. What quadrant is the negative x axis in? If you can answer that then you have your answer for 180 degrees.

- amistre64

suppose I do not have a nickel, and you do not have a nickel; why should we determine which of us has the nickel?

- amistre64

i can fit infinity on the head of a pin ;)

- anonymous

:)

- anonymous

sidd...the lines x = 0 and y = 0 divide the plane in four quadrants, so they are not the part of any

- anonymous

Good way of speaking @uzma

- anonymous

is it so.....that indirectly means that all angles of the form 90n (n is an integer) are not in any of the quadrant...m i right sir..

- anonymous

and mam!!

- anonymous

yessssss

- anonymous

I agree

- anonymous

now u got it :)

- amistre64

90 is a measurement, not a place.

- amistre64

if the 90 gets you to the place, then you are where you are :)

- anonymous

yahooooooo!!!!!thanx a lot guyz

- anonymous

chck out 4 ma new dobt!!

- anonymous

I must say siddharth, that these questions must never be burried in fear of being called an idiot

- anonymous

You did good by asking this question, and you should carry on asking such question

- anonymous

very true sir!!!!thank you....

- amistre64

...and never let an answer hinder you from finding out truth :)

- anonymous

hey guyz ...um a kind of inqsitive guy...can u tell me which country u belong..?

- anonymous

all u guyzzz!!!

- amistre64

south of canada and north of venezula

- anonymous

m from pakistan

- anonymous

I belong from Universe, from a planet called earth, and from one world (no country)

- amistre64

if I go east, I and up back here again

- anonymous

well m from india....

- anonymous

No doubt, gautam buddhas real name can't be found elsewhere

- anonymous

so u guyzz all 20+

- amistre64

wasnt siddhatha the buddha prince?

- anonymous

yeah ...

- anonymous

"chck out 4 ma new dobt!!" have you already posted it?

- anonymous

i m just 16(almost)........so not so much knowledgeable.

- anonymous

leave this place and chck out 4 ma new doubt...

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