Afternoon sir , can you please also please do trigonometric equations using double and compound angles 😭🥺🤧. And sir thank you your lessons have helped me alot
Good day Sir, Can you please explain to me example 2 and 3, on why you said cos is +/- . Why didn't you check where cos is positive or negative on the cartesian plane like you did using the sin?. ( not sure if you understand my question)🙃
@@MlungisiNkosi yeah I also think so but nowa the problem is in a situation when u have 90°-2x = X-10° The final answer won't b the same 1. -3X = -100+360K 2. 100+360k=3X Which on should be a solution coz if I divide -3 on Solution 1 the answer -120K But if divide 3 on solution 2 the answer +120k
i know its been months since the upload but can someone help me with example 1: when the 90 was taken to the other side was it divided by negative1 just like -4x, if so then why not apply the same thing to the 360k on the other side
Good evening Mr. Mlungisi, I would like to know if for some reason you took the x to the left side and it became negative, and the 90 also became negative, does it influence the positive of the +k360?
I'm getting a 100% for both math and physics this year. Remember my words .(thank you sir for your lessons)!!!
Something I definitely want to hear. It is always my pleasure 😊
uthini lo
@@KeithNjenge 😂
What you got bro
@@KeithNjenge 🤣
Sir for sin,
90- -30 is 120 not 110
Hence it’s giving you the value of x as 110-2x k.360 instead of 33,3+ 120k.360 like the the cos one
I'm passing Maths because of you Mr ❤️ thank you so much
You’re most welcome
I will succeed in maths and physics this year ❤🎉
No doubt
Sir you made a mistake there at 90-(-30) you wrote 110 and it’s 120
Thank you for this, now it makes sense
was it not supposed to be -4x = k360 - 90 which then gives x = 22.5 -k90 for the very first solution
That’s perfect
You are really good sir on teaching this subject keep it this way 🤙
Thank you…
Afternoon sir , can you please also please do trigonometric equations using double and compound angles 😭🥺🤧. And sir thank you your lessons have helped me alot
You're most welcome. Please check in my earlier posts. Those lessons already exist.
Thank you sir Nkosi for the lessons they are helpful
You’re most welcome 🤗
Please Matrics let's try and watch these ads 😍 road to 150k subscribers
You're the best!
Sir is this like genereal solutions?
👏👏👏👏
Good day sir, I'm curious for the last example why we would subtract 180 from sin whereas we didn't subtract 360 from cos?
Good day sir I don't understand how you got 110 instead of 120 on the last question?? Please help 🥺
Mkhulu Mlu made a biiiiggggg mistake. Askies MaNkosi
Good day Sir, Can you please explain to me example 2 and 3, on why you said cos is +/- . Why didn't you check where cos is positive or negative on the cartesian plane like you did using the sin?. ( not sure if you understand my question)🙃
Please start from the beginning of this series…
Do I still get it right if I changed sin to cos in the last example?
Yes you do
sir for the last example when you transposing 2x to the left, isn't supposed to be - 2x so that the final answer is - 3x?
Did I make a mistake? 🫣
Sir can I ask something..
In example 2 we divided everything by -2 ...aren't we supposed to get -180 when we divide 360 by -2
That’s true! Did I make an error?
@@MlungisiNkosi yeah I also think so but nowa the problem is in a situation when u have
90°-2x = X-10°
The final answer won't b the same
1. -3X = -100+360K 2. 100+360k=3X
Which on should be a solution coz if I divide -3 on Solution 1 the answer -120K
But if divide 3 on solution 2 the answer +120k
@@flexace768 remember k is an element of real numbers… Meaning, k can be equal to +/- values.
@@MlungisiNkosi so in that situation both answers are correct
@MlungisiNkosi so that means we always leave our k positive since it's the element of integers, even if we divide it by a negative?
Hey sir I was just asking if you would do more examples wherein we have to factorise
That will not solve your problems. What you need to do now is try the examples yourself
@@MlungisiNkosi okay sir
Sir why is it that in example 2 when you took the 90 to the oppisite side the sign didn't change?
Hau, that must’ve been an error
i know its been months since the upload but can someone help me with example 1:
when the 90 was taken to the other side was it divided by negative1 just like -4x, if so then why not apply the same thing to the 360k on the other side
You don’t have to because k can be negative or positive 😊
@@MlungisiNkosi thank you sir
Mr Nkosi please do Probability on your next coming series,I'm really struggling with that one 🙏🙏
That will be after doing Euclidean Geometry
@@MlungisiNkosi much appreciated 🙏
Thanks 🙏
You’re welcome.
even if K360 is negative you can put it as positive? sir, that's what I noticed but I'm not sure
Yes you may
6:39 sir are we not dividing 360K by negative 2 isn't it supposed to change sign?
You may but it’s not necessary since you substitute k with integers
X=30+k120;k€z is correct?
But the first i confused by (_) it like this x+20=_(110_2X)+K360 the firs thing i remove blacket with negative then i got different answer
Hi Sir is there lesson 7 .I can't see it.
Please check the playlist
Hi, sir. I couldn't help but notice that lesson 6 & 7 are missing from the catalog. 😭
Please check under playlists
Good evening Mr. Mlungisi, I would like to know if for some reason you took the x to the left side and it became negative, and the 90 also became negative, does it influence the positive of the +k360?
No it doesn’t… As long as the frequency stays the same
Hi sir, when we divide by the -2, doesn't it affect the k360?
It does…