Recently Active Mathematics Questions

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Find the point in the interior of a triangle such that summation of its distances from vertices is minimum. ...

find the sum to 10 terms of 2+5+31+86+.... and how ...

I tore several successive pages out of a book. The number of the first page I tore was 183 while the number of the last page was written with the same digits in some order. How many pages did I tear out of the book? ...

find the grtest +ve term of 2/5,12/23,3/4,4/3,......... and how ...

If an is the digit in the unit place of the number 1!+2!+3!+........+n! , then a8 + a9 + a10 + ......... + a16 is equal to what ?______ ...

Find the number of zeros at the end of 300! ...

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... ...

What is the coefficient of x65 in the expansion of (1+x)131(x2-x+1)130. ...

A man takes either 1 step forward or 2 steps forward. If a ladder contains 10 steps, find how many no. of ways can he climb? ...

An eight oared boat is to manned by a crew chosen from 11 men, of whom 3 can steer but cannot row, and the rest can row but cannot steer. In how many ways can the crew be arranged, if the two of them can only row on bow side ...

Number of distinct real roots of f''(x) if f(x) is (x-1)25(x-2)43(x-3)11 is ___ ...

The no of positive integers x for which f(x)=x3-8x2+20x-13is a prime no is _______ ...

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

These are copy pasted guys.I think u may found it useful . a)If A is an orthogonal matrix , then A-1 equals At (t - transpose) b)If A,B are 2 square matrices , such that A.B = A & B.A = B , then A & B both are indepen ...

Is there something called Newton- Leibnitz theorem in integral calculus????? ...

if A=B=pi/2 what is tan (A+B)=-infinity(formulae) it should be zero why ...

x is the product of three natural number. The probability that x is divisible by 10 is.... ...

If A=(3,4) and B is a variable point on the lines |x|=6 .If AB≤4 then the number of positions of B with integral co-ordinates is: (a) 5 (b) 6 (c) 10 (d) 12 ...

A bag contains P+1 balls and a ball is drawn.Now ball is replaced in the bag with one more ball and again a ball is drawn and the process is repeated till P-1 more balls are there in the bag.Find the probability of drawing a ...

If high voltage (440V) current is applied on the field which is given by the graph y-mod(y)-x+mod(x)=0.Then on which of the following curve Mr.Faraday can move so that he remains safe. a)y=e-mod(X) b)y=1/x c)y=signum(x) d)y=- ...

how do you solve a harmonic geometric progression like S = 1/3(1/2)2 + 1/5(1/2)4 + 1/7(1/2)6 + ....∞ this question had options which were easy to eliminate but how do you solve this? ...

how to draw the graph {x} and please help me to draw the graph y={x}2 and {x}={y} ...

COMPREHENTION: if f:R---->R & f(x) is differentiable function such that all its succesive derivatives exists f'(x) can be taken 0at discrete points only & f(x).f''(x)≤ 0 for all x εR ans foll ...

The no of non negative integral soln of x1+x2...+xn=n is_____________ ...

can any one give me the general proof for npr ...

a is chosen as a random natural number. what is the probability that (x-1)(x-10)(x-a) has no repeated roots? *Image* plz explain ...

C° , C1 , C2, ......., Cn represents the coeffecients in the expansion of (1+x)n then find the value of C°Cr + C1Cr+1 + C2Cr+2+ .................. + Cn-rCn ...

how did you get to this formula for calc the no of squares no. of squares = n.p + (n-1).(p-1) + (n-2).(p-2) + ... (till the product becums zero)... given n vertical and p horizontal lines ...

If α,β,γ,δ are roots of x4+qx2+rx+s=0,then find eqn whose roots are β+γ+δ+(βγδ)-1 & c ...