Trig relations: revision (1 Viewer)

[I AM MUSIC]

IT'S NEGATIVE YAEEAEAEAEAEAAEEA

View attachment 46260

tf

 

[pl4smaa21]

tf

it's from this:

 

[jane1820]

 

[jane1820]

I had to self teach myself those (i dont go tutoring) through youtube articles n ai but eventually understood them
decided to post the answers to c, e and f in case someone had the same problem

 

[jane1820]

Note: i used 120 as an example since the question specifically said that angle theta is in the second quadrant therefore theta is any number between 90 and 180

depending on the quadrants it might differ

 

[pl4smaa21]

I had to self teach myself those (i dont go tutoring) through youtube articles n ai but eventually understood them
decided to post the answers to c, e and f in case someone had the same problem

yea me 2 I never really went tutoring (too expensive) i always had to self teach math. btw can I ask how did u make like digital notes like that I always see them on yt and acehsc but I never know how to do that like I made the digital explanations on the previous page using a mouse and keyboard but like how do u write so nicely like that?

 

[jane1820]

yea me 2 I never really went tutoring (too expensive) i always had to self teach math. btw can I ask how did u make like digital notes like that I always see them on yt and acehsc but I never know how to do that like I made the digital explanations on the previous page using a mouse and keyboard but like how do u write so nicely like that?

Ipad and pen (i dont have the apple pen so i use a laser pen - works the same)

i would highly recommend an ipad w a pen if ur aiming to transfer everything as digital notes

also off topic but your drawing w the mouse is lowkey so good i deadass cant draw a circle w a mouse

 

[pl4smaa21]

Ipad and pen (i dont have the apple pen so i use a laser pen - works the same)

i would highly recommend an ipad w a pen if ur aiming to transfer everything as digital notes

also off topic but your drawing w the mouse is lowkey so good i deadass cant draw a circle w a mouse

ah okay that makes sense, also I think I misled you it wasn't exactly a mouse moreso it was a laptop trackpad so like I'd use my left hand [non-dominant] where i would have my middle finger on the left click button y'know the one that clicks things and I'd move my index finger to draw out it is effective for circles and lines but a bit crap for letters (look at the abomination below) so I agree with u that digital pen is good option and i should probs try to get one someday.

 

[jane1820]

handwriting 2 messi

I was speed writing

 

[joeystarbank]

View attachment 46263

these are rlly nice colours lol

 

[jane1820]

these are rlly nice colours lol

Yur i like to match my notes w the bg
like chem is blue
bio is purple
math is pink

 

[SS173]

Since the angle is in the second quarter, simply substitute a number (eg 120) and see what happens. For (c) 90-120 = -30, then it gives sin(-30) which is negative etc.
cos(180 + 120) =cos(300) which is positive and tan(90-120) = tan(-30) which is negative. So the provided answers are correct.