₦airaland Forum

MY SOLUTION
Given that A + B + C = M, we can write B + C = M – A. Therefore

Cos A = – Cos (M – A) and Sin A = Sin (M – A)

Using sum and difference formulas, we have

Cos A = –Cos(M)Cos(A) – Sin(M)Sin(A), and
Sin A = Sin(M)Cos(A) – Cos(M)Sin(A)

Adding both equations and grouping, we have

(1 + Cos M)(Sin A – Cos A) = (Sin A + Cos B)Sin M ——— (1)

Dividing the original trigonometric equations in the question

tan A = – tan (M – A)
Using the difference formula for tangent,
tan A = (tan A – tan M)/(1 + tan(M)tan(A)) –—– (2)

Solving equation (2) yields

(1 + tan² A) tan M = 0.

This means tan M = 0, therefore Sin M = 0. Substituting Sin M = 0 in equation (1) yields

(1 + Cos M)(Sin A – Cos A) = 0

This means Cos M = –1, solving this equation yields

M = (2n + 1)180°, where n is any interger

MrShape, guiddoti, danielistics, NDSMELODY

Mrshape:
Lol
That zero has been part of my mind since I saw they question.

Please show workings.

If you understand female nature, you wouldn't be surprised or hurt. The Yahoo boy is probably making more money, and he would give her a more comfortable life with his money as long as the Yahoo business doesn't run dry.

Forget about women, focus on yourself, and build up yourself for your own good.

Allaboutkatiee:
Maybe they are all not just meant for you.
And the lady that told you that trash is plain stupid.
Keep doing what you do.

....

NDSMELODY:
....

Wrong! Your workings are dubious and irrational.

danielistics:
-540, -180, 180, 540, 900, 1260 and so on. Just be adding 360°.

You are correct! The answer is M = (2n + 1)180°, where n is any integer. MrShape got this result, but he added 0° to his solution. Please show your working.

danielistics:
Possible value of M is 180°

List all possible values of M.

omolasho:
And what do you do after getting the values of M? The Whites stopped solving pure mathematics before the entry of 21 century but application of mathematics in life situation like computer science and ICT. They are advancing Artificial Intelligence(where robots will render more than half of worlds population unemployed), you are here looking for 'M' Abi? Weeere!!!

Who told you that whites stopped solving Pure Mathematics before the entry of the 21st century? If you are not interested in solving the problem, or you don't know how to solve it, leave this thread for those that are ready.

Mizwisdom:
There are some bitter guys that will soon take over this thread of yours. You don't need people's advice as an adult, it should be your full decision. That her child will become yours if you keep an open mind and accept her as yours wholeheartedly.

Acct2, this is a dangerous advice. It takes a cold-hearted individual give such advice. Women are cold-hearted.

Mizwisdom:
Hmmm I used to respect you for your contributions but you have highly disappointed me with this one

Shut up bitçh. Madridguy doesn't live to earn your approval. Your approval is worthless; it doesn't pay his bills or swell his account balance. Madridguy owes you nothing.

Mrshape:
Answer is (0, 180+360×n) were n is an integer

Wrong! You are almost there. You are nearer to the answer than before.

NB: I have my workings, and I will post my solution tomorrow.

Mrshape:
(0°, 180° 360......)
M=180n were n is an integer

WRONG! You are almost there. M = 360° wouldn't work (try A = 150°, B = 75°, and C = 135° as a test if you doubt me.)

Guiddoti, won't you attempt the question.

Liverpool fans right now.

MrShape, dejt4u, Darivie04 (Darivie05), etc.

Omar09:
Oh church.

What about church? Can you find M?

Due of immense boredom, I decided to compose this simple question for Nairaland mathematicians:

If for any three angles A, B, and C,

Cos A = – Cos (B + C) and Sin A = Sin (B + C),

List all possible values of M if A + B + C = M

benedima1990:
fear lawyers with everything you have ..... This is pure nonsense and it won't stand a bit in the law court once the lady deny any promise of marriage and the family also deny knowing the guy . even with evidence of payment, if the lady tell the court that , he decided he wanna be of help because I've been a good student from secondary and no marriage plan whatsoever, the court will just close the case

lawyers will make u feel like there are higher chances whereas, u don't have 0.2 % of winning

if he claims he can win your case , let him
represent u free and wen he wins the case, proceeds will be shared 50_ 50.

Are you minding that lawyer and the gullible op? Except the girl and her family don't deny anything, the OP's friend has 0.000% chance of getting the money in court. Even someone with an average IQ should know this without creating a thread to ask.

Lawyers be dishing high hopes since time immemorial to swell their pockets from cases.

RIP Doctor. I don't really buy the purported reason behind her death.

What you have said is true, but the hunger virus is strong than coronavirus.

A guy opened a thread yesterday asking which is better: training a girl in school with the hope of marrying her, or training a dog you plan to eventually sell.

Too bad the mods closed down the thread for no good reason. I beseech Seun Osewa to overhaul his biased mod team. Anyway, it is better to train a dog you plan to eventually sell than train a girl in school with the promise of marrying her. When will men ever learn?

Funkyswagzz:
I really don't know what is happening. Girls that I wanted to date in the past just remembered me of recent. There are three of them and all of them declined my interest to date. Just of recent they chatted me up. I don't really want to go into details of what happened, its been over a yr or two and I don't have their contacts anymore. It's just as if they know things are goin very well for me and they decided to contact me. I really wanted to date all three of them buh it never happened.

One of them went extra mile by telling her friend to beg me. I'm really confused cos I don't want anything that will take away my happiness. The reason I'm here is because all three of them remembered me at this point in time and it's shocking. Please a brother need ur advice I don't know what do. I just don't know how things might turn out if I engage with any of them.

Don't be a foõl; ignore them.

sexylassie2:
You are not the poster, I read this on Facebook, on twitter last year.

Now, I am reading it again in another version.

Supply evidence or STFU.

CAPSLOCKED:
AS AN ATHEIST, NO MATTER HOW HARD YOU TRY TO BELIEVE THESE THINGS, IT JUST NEVER WORKS. NO MATTER HOW HARD YOU TRY TO HAVE ENCOUNTERS WITH THESE GHOSTS, THEY JUST KEEP RUNNING AWAY FROM YOU.

WHILE EVERYONE FALLS UNDER THE ANOINTING, YOU'LL BE THERE STANDING TALL WITH THE USHERS AND CAMERA CREW.

WHY BRO, WHY?

Maybe it's God's will that we remain unbelievers.

palsenator:
Did you say the laws of nature are suspended Ooh. You are well schooled bro but as regards nature, you need to dig deeper.

I said the laws of nature are never suspended. As a simple example, heavier objects will never fall faster than small ones in a vacuum. Gravity will never start lifting us away from the earth all of a sudden, neither are we going to walk on water with our barefoot. There are many more examples I could give. All I am saying is that the so called miraculous which defy the laws of nature is impossible.

GreatResearcher1, a new account has been opened over your matter: Notatèflõnguy.

GreatResearcher1:
well said boss.

Here is yours.

hahn:
You need to be specific on what you mean by "drugs". Cocaine and Igbo no be mate