2017ers Preliminary Chit Chat Thread (5 Viewers)

[eyeseeyou]

after u got dat 98%..u have become my inspiration

ikr

 

[eyeseeyou]

Do any of you guys know how to use you calculator properly when it comes to inversing things (like invere tan of 7)?

 

[Green Yoda]

Do any of you guys know how to use you calculator properly when it comes to inversing things (like invere tan of 7)?

yeah? just shift tan lol

 

[eyeseeyou]

yeah? just shift tan lol

Yeah but for some reason, I don't get an answer which is in the form of an acute angle

 

[Green Yoda]

what is the question?

 

[InteGrand]

Yeah but for some reason, I don't get an answer which is in the form of an acute angle

Inverse tan of a positive number will always be an acute angle. You may need to add or subtract a multiple of 180 deg. if you want the answer to be in some other range.

 

[eyeseeyou]

what is the question?

Find the acute angle between the lines:

3x-2y+1=0 & x+5y+3=0

I got tan (alpha) to be 17/7 and whenever I tan inverse, I'm getting some fucked up value

 

[jathu123]

Find the acute angle between the lines:

3x-2y+1=0 & x+5y+3=0

I got tan (alpha) to be 17/7 and whenever I tan inverse, I'm getting some fucked up value

probs it's in radians then
if you're using Casio, then make sure its in degrees by pressing shit+setup, then press 3

 

[eyeseeyou]

probs it's in radians then

No it's not in radians

 

[InteGrand]

Find the acute angle between the lines:

3x-2y+1=0 & x+5y+3=0

I got tan (alpha) to be 17/7 and whenever I tan inverse, I'm getting some fucked up value

The inverse tan of that should be 67.619864.... deg.

 

[eyeseeyou]

The inverse tan of that should be 67.619864.... deg.

I did inverse tan (17/7) and got 1.180... some random shit and then when I converted it to degrees I got 1 degree 10 minutes 48.68 seconds

 

[eyeseeyou]

Integrand I need your help

 

[jathu123]

I did inverse tan (17/7) and got 1.180... some random shit and then when I converted it to degrees I got 1 degree 10 minutes 48.68 seconds

Yup that's definitely the radian value of 17/7. press shit+setup and 3 and now try and you'll get 67.62..
if you're still not getting 67 then something wrong lol

 

[eyeseeyou]

Yup that's definitely the radian value of 17/7. press shit+setup and 3 and now try and you'll get 67.62..

Thank you Jathu123. You are an absolute legend

 

[InteGrand]

To see whether your calculator is in degree or radians, it should display at the top of the screen a letter "D" if it's in degrees mode, or "R" if it's in radians mode (for the usual Casio calculators).

 

[eyeseeyou]

To see whether your calculator is in degree or radians, it should display at the top of the screen a letter "D" if it's in degrees mode, or "R" if it's in radians mode (for the usual Casio calculators).

Yeah it was in radians mode which account for why I fcked up the question and got confused af. Now I can actually focus on what I'm doing wrong

 

[si2136]

Yeah it was in radians mode which account for why I fcked up the question and got confused af. Now I can actually focus on what I'm doing wrong

I just reset my calc before any test, and make some modifications.

 

[Simorgh]

The subjects I was the most passionate and interested in like Economics and Modern History I am getting average.

While in subjects I thought disliked and had no interest like Physics and Chemistry I happen to be topping in??? I never really liked Science that much even since Yr 7..

While English and 3 Unit are like Mehhh.... Doing alright in them but could be doing much better !

Btw my school is in top 100.

 

[si2136]

The subjects I was the most passionate and interested in like Economics and Modern History I am getting average.

While in subjects I thought disliked and had no interest like Physics and Chemistry I happen to be topping in??? I never really liked Science that much even since Yr 7..

While English and 3 Unit are like Mehhh.... Doing alright in them but could be doing much better !

Btw my school is in top 100.

Well you might be topping, but are you getting good grades?

 

[Simorgh]

Well you might be topping, but are you getting good grades?

Yup it looks I am doing quite well in Phys and Chem rank plus overall marks. But I am ashamed I should be topping subjects like Eco and Modern!

Modern and Eco were my dream subjects I was destined to top in. ! Looks like I needa drop them but I am not going to at all. I can't believe I screwed up in these two, its probably becoz I became too nervous to do well in them and had high expectations of myself.