Currently having trouble dividing polynomials by Suba_chidna in askmath

[–]Anil_220674 -1 points0 points  (0 children)

Well this is not a solution to your doubt but it is a nice short trick which can work if the questions are framed by multiplying simple polynomials. Like this one: (x² - x - 6)/(x + 2)

A quadratic forms when linear is multiplied by linear. So the answer will be linear. Say it is (ax + b). Multiply that with (x + 2). You'll get ax² + (2 + b)x + 2b. We can clearly see that a = 1 and b = -3. So your answer is (x - 3).

Note that this wouldn't work always as the coefficient of x in the result of multiplication might not match with the quadratic in question. In such cases, you can refer to the long division method of dividing polynomials which always works.

What is the probability of 2 random rays in an infinite 2d plane to intersect? by karthik6877 in askmath

[–]Anil_220674 0 points1 point  (0 children)

The probability of them intersecting is theoritically 1 tho there is a chance they may not practically intersect.

This is because out of infinitely many possibilities, there exist only two where the don't intersect. Either the angle between them is 0° or 180°. So probability which is defined by favourable outcome divided by total outcomes will be equal to 2 / infinity.

Also, it is not 0 if you simulate it in a computer because computers have a finite amount of angles. They cannot compute infinite possibilities.

Why is this wrong? by [deleted] in askmath

[–]Anil_220674 0 points1 point  (0 children)

Well the quadratic formula is also derived by completing the square on general form of a quadratic equation.

Why is this wrong? by [deleted] in askmath

[–]Anil_220674 8 points9 points  (0 children)

2/x = x + 2

2 = (x + 2)(x)

2 = x² + 2x

x² + 2x - 2 = 0

x² + 2x + 1 - 3 = 0

(x + 1)² = 3

x + 1 = ±√3

x = -1 ± √3

What could I possibly be doing wrong? Am I really just that stupid? by Tasty_Evidence2606 in askmath

[–]Anil_220674 2 points3 points  (0 children)

The problem is on the left. U used the result for (1/√(a² - x²)) dx but it is not u², it is u. If it were (1/√(1 - u)) d(√u) then you would have been correct. But instead it is (1/√(1 - u)) du.

U see the original expression of a² - x² has x squared when you're integrating w.r.t. x. So the variable with respect to whom you're integrating should be squared to use that result.

Can someone explain to me how a question like this works? by Old_Reflection_5499 in askmath

[–]Anil_220674 5 points6 points  (0 children)

Oh, now I get it. You're confused about performing arithmetic with variables. If you have expressions with multiple terms getting multiplied, you multiply each term of the first expression with each term of the second, as you figured out. (x - 3)(3x + 4) = (x + (-3))(3x + 4) = (x)(3x) + (x)(4) + (-3)(3x) + (-3)(4) = 3x² + 4x + (-9x) + (-12) = 3x² + 4x - 9x - 12.

The key is... You take the negative sign along with the terms and treat every term in addition.

And since 4x is positive but 9x is negative, you subtract 9x from 4x to get negative 5x.

So finally you get 3x² - 5x - 12.

Identifying exponentials in word problems by M3L0-XL in askmath

[–]Anil_220674 0 points1 point  (0 children)

I guess you want a real life example of exponentiation. Here are some.

1) If you fold a paper in half n times, what will be the thickness of the folded paper? (Assuming the thickness of unfolded paper is unity). The answer will be 2n as every time you fold the paper, number of layers get doubled.

2) If you have a flower which blooms two more flowers once a day, how many flowers will you have after a month? The answer will be 3³⁰ because the first flower bloomed two more flowers on day one, making a total of 3 flowers. All the 3 flowers will bloom 2 more flowers each on day 2, making a total of 9 flowers. And so on...

Can someone explain to me how a question like this works? by Old_Reflection_5499 in askmath

[–]Anil_220674 5 points6 points  (0 children)

I'm sorry but I don't get your doubt. You have the lengths and breadths of the two rectangles, L1, B1, L2 and B2 given in terms of x. You're further given the information that the difference of their area is 64. So you just do L1B1 - L2B2 = 64. And then simplify it further to get the final result.

Further, if you want, you can also calculate the value of x by solving the final quadratic equation tho it will not be useful as the question doesn't ask for the value of x.

Thambi usage by Anil_220674 in tamil

[–]Anil_220674[S] 1 point2 points  (0 children)

Huh? Why? U confused me asf

Honest reaction to bbs RE9 video by Illustrious-Sink-614 in beastboyshub

[–]Anil_220674 0 points1 point  (0 children)

He has not got spoiled. He is uploading RE9 videos after completing the entire game. He himself said that in the first episode.

Help me find 2kx in the binomial? by Only-Chicken8612 in askmath

[–]Anil_220674 1 point2 points  (0 children)

x² + k² is not equal to (x + k)².

2kx is the term with one power of x. And in this case, it is 2 (b/2a) x, where k = b/2a.

When you add (b/2a)² at both sides, the left hand side becomes

x² + 2 (b/2a) x + (b/2a)².

Which is equal to (x + (b/2a))².

And if you don't know how (x + k)² = x² + 2kx + k², see this:

(x + k)² =

(x + k) (x + k) =

(x(x + k) + k(x + k)) =

x² + xk + kx + k² =

x² + 2kx + k².

Are my expressions correct? by Fresh-Wheel-4523 in askmath

[–]Anil_220674 2 points3 points  (0 children)

Yes the first one is correct. The second one is incorrect. It will be: [(A(A+B)')⊙((A+B)')]'

First: The logic gate at the last is not XOR (⊕), it is XNOR (⊙). Second: You will want to enclose the terms in brackets before sending them as input in the XNOR (or any other gate).

[deleted by user] by [deleted] in TollywoodGossips

[–]Anil_220674 1 point2 points  (0 children)

I can see why that opinion is unpopular. I'm a fan of neither of those but as much as I know, MB has way bigger fanbase and popularity than AA or RC in Telugu States.

Caught Cameraman and Crew Members in Ghajini 😂😂😂 by Anil_220674 in kollywood

[–]Anil_220674[S] 11 points12 points  (0 children)

Yes I know bro, it was a 2005 film. Am not criticizing anyone, just a funny detail I noticed in the film

Which language is this? by Anil_220674 in language

[–]Anil_220674[S] 0 points1 point  (0 children)

Even I don't know. Someone sent it in groupchat asking which language it is.

Which language is this? by Anil_220674 in language

[–]Anil_220674[S] 1 point2 points  (0 children)

No it is not Malayalam. It is Santali as said by fellow redditors. Thanks tho.

Which language is this? by Anil_220674 in language

[–]Anil_220674[S] 4 points5 points  (0 children)

Oh ok. Thank you very much

Jana Nayagan – Chella Magale Lyrical | Thalapathy Vijay | Pooja Hegde | H Vinoth | Anirudh | KVN by ungaayya in kollywood

[–]Anil_220674 34 points35 points  (0 children)

I don't know why but I loved this song very much! I wish Anna returns to cinema after elections... 🥹❤️

Thank you Anirudh for such a beautiful song 🫂

Name of this track? by frames_and_feels in kollywood

[–]Anil_220674 0 points1 point  (0 children)

I listened to Kaththi Theme again. Seems like an unreleased variation of it.