Popular Algebra Questions

Here i will be posting ques on probability which could prove to be useful 4 every1 Do try to give explanations if u can options will be given on demand[1] Q1 If the papers of 4 students can be checked by any one of 7 teachers ...

A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the Probability that All the three balls are white in solving this question i have a doubt can we take 5 white balls as identical or not.can u explai ...

How thick should a coin be to have a 1/3 chance of landing on edge? ...

Find the remainder when (1!+2!+3!+...+2007!)^500 is divided by 7... #This question is directly copied from a standard buk... juzz wanna know different ways of solving it... ...

some of my friends are confused with percom so i want all here help them out with theory and problems alike......some are starting now...can nishant bhaiya help??? ...

Three numbers are chosen at random from 1 to 20. The probability that they are consecutive is ...

though may be easy....but not getting[2] if x_{1}^{2}+x_{2}^{2}+x_{3}^{2}........x_{20}^{2}=400 y_{1}^{2}+y_{2}^{2}+y_{3}^{2}........y_{20}^{2}=900 find \frac{x_{1}}{y_{1}}+\frac{x_{2}}{y_{2}}+\frac{x_{3}}{y_{3}}+...........\ ...

In how many ways can you color a cube with a) one color b) two colors c) three colors d) 4 colors e) 5 colors f) 6 colors Each of them is easy ... just needs a bit of thinking :) ...

let a1,a2,a3 be a sequence of real no.s such dat an+1 = an + (an^2 + 1)^1/2 then LIM n-> ∞ (an/2n-1) is 1. 1 2. 0 3. -1 4. 2 ...

Q1. Let \LARGE\!\phi (x) = sinx\int_{0}^{x}{costdt} + 2\int_{0}^{x}{tdt} + cos^2x - x^2 . If \LARGE\!x^2 - 2x +3 \geq \phi (x) \vee x\epsilon R, then greatest area bounded by xφ(x) and coordinate x=0 and x=5 is (a) 16 (b) 25 ...

Q if p=(x2-x1)2+(2√x2-x1-2)2 , x1,x2 ε R and x2 > 0 , then find minimum value of p ?? ...

1)In a certain test, there are n questions .In the test 2n-1 students gave wrong answers to atleast i questions, where i=1,2,3,....n. If the total number of wrong answers given is 2047, then find the value of n. 2)A person go ...

It all started with b555's classic integration siikho thread..and now nishant sir started some more threads on it.... I ma starting one small on inequalities..A lot of inequlaities thread are already there on site..I know tha ...

1) How many permutations of the letters a, b, c, d, e, f, g have either two or three letters between a and b? ...

Let f (x + y) = f (x) f (y) for all x and y. Suppose that f (3) = 3 and f '(0) = 11. Then f ' (3) is given by : opts are : 22,33,44, none of these.... Ans: I'm getting 33 but the ans reads none of thes ...

1) How many arrangements can be made with all the letters of the word "VENUS" such that the order of the vowels remains unaltered ? 2) In how many ways can 5 commerce and 4 science students be arranged in a row so that the co ...

The land of Hogwarts school of magic is different. The no. of girls and boys are equal . All the boys have two hands, while all the girls have only one {:)} . Dumbledore, the principal of the school arranged a party on new ye ...

How many digits are there in 264. ...

Questions from various materials n books : PERMUTATIONS & COMBINATIONS { I would continue adding qs in this forum everyday . } 3) There are 2 women participating in a chess tournment. Every participant played 2 games with the ...

If a, b, c are in A.P. p, q, r are in H.P. and ap, bq, cr are in G.P. then(p/r)+(r/p) is equal to (A) (a/c)+(c/a) (B) (a/c)-(c/a) (C) (b/q)+(q/b) (D) (b/q)-(q/b) ...

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There are 6 points in a plane such that no 3 are collinear. Each point is joined to another by a coloured line which is either blue or red. Find the minimum no. of monochromatic triangles. ...

Didnt want to make the previous thread tooo long..http://targetiit.com/iit-jee-forum/posts/inequalities-sikhna-chahte-ho-to-sikho-varna-koi-b-11546.html so new questions in new thread... This is season 2 of "Inequalities Sikh ...

1.Two circles are constructed taking two sides of a triangle as diameter. What is the probability that these two circles intersect on third side of triangle? 2.In a MAMCQ test, der r 4 alternatives out of which 1 or more r co ...

*Image* try d 7th and 8th one ...

find the amplitude of 1+\frac{\sqrt{3}i }{\sqrt{3}+i} ...

I AM STARTING THIS THREAD WHERE U CAN POST ALL THE SHORTCUT FORMULAS AND TRICKS IN EACH SUBJECT BE IT PHYSICS OR CHEMISTRY OR MATHS. JUST GIVE THE SUBJECT AND TOPIC HEADING TO UR REPLY AND POST THE SHORTCUTS. ...

find the min value of \left|a+b\omega +c\omega ^{2} \right| where a,b,c are not equal integers and ω≠1 is cube root of unity.. ...

Q 1. A function f : R->R , find the interval for alpha...such that f is onto........ f(x)=(αx2+6x-8)/(α+6x-8x2) Q 2. If f(x) + f(y) + f(xy) = 2 + f(x)f(y).......for all real x & y.......... f(x) is a polynomial.......f(4 ...

pls ans dis ques A man has to take 9 steps. he can move in 4 directions left, right, forward, backward. 1. in how many ways he can move 9 steps?? 2. in how many ways he can move 9 steps such that he has to take steps in all d ...