Recently Active Class Vii X Mathematics Questions

If ax2 + bx + c = 0 be a quadratic equation where a,b and c are odd then prove that, it can't have a rational number solution. ...

The section consists of a few questions. Just work them out... I too wanna check myself.. 1. If, (a + 2b)2 + (b - 2c)2 + (c - 2a)2 = 0 find (a + b - c)2 where, a,b and c belongs to R. 2. We have three triangles in the figure ...

Gave my maths board examination today.. it was awesome...!! expecting, 79/80 ... But wanna confirm myself in some questions Q) Two dice are rolled once. FInd the probability of getting such numbers on the two dice, whose prod ...

Two pipes together can fill a reservoir in 12 hours. If one pipe can fill the reservoir 10 hours faster than the other, how many hours will the second pipe take to fill the reservoir? Topic : Quadratic equations ...

Can someone please explain the mass point geometry? ...

A carton consists of 100 shirts of which 88 are good, 8 have minor defects and 4 have major defects. Jimmy, a trader, will only accept the shirts which are good, but Sujatha, another trader, will only reject the shirts which ...

Please explain the A.M-G.M inequality... and its application... yep i m asking u?? ...

Find the sum of numbers in the 200th box (1) + (2 + 3) + (4 + 5 + 6) + (7 + 8 + 9 + 10) + ...................... Easy... just think a bit... not for all experts... but try...!! ...

1) In triangle ABC, E is on AC so that CE = 3AE and F is on AB so that BF = 3AF. If BE and CF intersect at O and line AO intersects BC at D, compute OB/OE and OD/OA . 2) In triangle ABC, points D and E are on sides BC and CA ...

the radii of two concentric circles are 13cm and 8cm . AB is diameter of bigger circle. BD is tangent to the smaller circle touching it at D . find the length of AD? ...

x4 = 16 then clearly two values of x are +2 and -2 but what bout other two?? ...

Solve this equation by completing squares x2 - (√3 + 1 )x + √3=0 ...

let me see who answers this first : The slantheight of a frusum is 10cm and r1=3cm and r2=8cm.find the height and slant height of the cone from which the frusum is cut ??? ...

is there a formula for finding out the no. of squares in a square??????? for example a chessboard.................... ...

This is for class IX X only a(a+b+c) = 10 b(a+b+c) = 12 c(a+b+c) = 14 Find a, b, c ...

if the expression 16x4 - 24x3 +41x2 – nx +16 is a perfect square then the value of ‘n’ is. ...

*Image* The side of the square is 1 unit and the circles have diameter as 1 unit.. ...

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HELP HELP HELP......... ------------------------------------------------------------------------------------------------------------------------------------- I just can't understand Probability from my class Xth book....:P Pl ...

*Image* in this sum HA, EB, FC, GD bisects the angles DAB,ABC, BCA, CDA respectively. P.T. EFGH is a rectangle. I could prove it. But i cant prove Efgh will/won't be a square. ...

if in a equilateral triangle three coins of equal radius are placed without overlaping then what is the radius of each coin ...

Is there any relation in a semicircle and a cone of the same radius? ...

*Image* Prove that AD = BD = CD if LB = 900 ...

Two circles touch externally at P and AB is a common tangent to the circles. Then LAPB is equal to ....... (A) 300 (B) 450 (C) 600 (D) 900 ...

Can someone tell me, why the volume of a cone is 1/3∩r2h (i.e., 1/3 times the volume of a cylinder) ? ...

If x + 1/y = y + 1/z = z + 1/x then prove that, xyz = x3 = y3 = z3 in simple way... please someone..! ...

This question was asked in FTRE (fiitjee talent reward exam) I was in muddle for sometime..... Someone check...! *Image* ...

Yesterday on 26|12|10, there was a question in FTRE... If x2 - y2 = 101, where x and y are natural numbers. Then x2 + y2 =? There were few options... I don't remember well but, one of them was can't be determined.... What mus ...

\frac{2}{log_{4}(2000)^{6}}+\frac{3}{log_{5}(2000)^{6}} ...

Find the square of the sum of the roots of the eqn log_{3}x .log_{4}x.log_{5}x=log_{3}x.log_{4}x+log_{4}x.log_{5}x+log_{3}xlog_{5}x ...