Unanswered Class Vii X Mathematics Questions

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

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 ??? ...

You people in 9th and 10th might find this really useful :) http://library.thinkquest.org/20991/alg2/graphs.html ...

A lighthouse, facing north, sends out a fan-shaped beam of light extending fron north-east to north-west. An observer on a steamer, sailing due west, first sees the light when he is 5 km awayfrom the lighthouse, and continues ...

If the 10th term of a geometric progression is 9 and 4th term is 4, then its 7th term is ...

If the {{p}^{th}},,{{q}^{th}}, and {{r}^{th}} term of an arithmetic sequence are a, b and c respectively, then the value of [a (q – r)+b(r – p)+ c (p – q)]= ...

The roots of the given equation (p-q){{x}^{2}}+(q-r)x+(r-p)=0 are ...

If 3+3alpha +3{{alpha }^{2}}+........infty =frac{45}{8}, then the value of alpha will be ...

Find the next term: 0, 7, 26, 63, 124, _____ ...

Find the next term: 521, 612, 343, 215, ____ ...

The sum of 1+3+5+7+..... upto n terms is ...

Find the next term: 3, 8, 15, 24, 35, ___ ...

If a, b are the roots of the equation a{{x}^{2}}+bx+c=0 , then the equation with roots 1/a, 1/b will be ...

{{x}^{2}}left( {{a}^{2}}+a+1 ight)-xleft( 1-{{a}^{2}} ight)-a-2=0 one of the roots of this equation is ...

2a{{x}^{2}}+2bx-2left( a+b ight)=0 One of the roots of this equation is ...

Find the sum of the series 1-2+3-4+5-6+..........+999-1000 ...

Find the sum of the series 3*2+5*5+7*8+9*11+......+19*26 ...

The following series is in √2, 2, 2√2, 4, 4√2....... ...

Find the sum of the series 12-22+32-42+52-62+..........+992-1002 ...

A is twice a good workman as B and together they finish a piece of job in 18 days. In how many days will A alone finish the job? ...

{{p}^{th}} term of the series left( 3-frac{1}{n} ight),+,left( 3-frac{2}{n} ight),+,left( 3-frac{3}{n} ight)+..... will be ...

If the distance between the points (a, 2) and (3, 4) be 8, then a = ...

What is in radians the measurement of an angle which is 45°? ...

The value of sec π/3 is ...

If the point (x, y) be equidistant from the points (a+b, b-a) and (a-b, a+b), then ...

LET A,B,C BE AN ACUTE ANGLED TRIANGLE AND LET D,E,F BE FEET OF PERPENDICULARS FROM A,B,C RESPECTIVELY TO BC,CA,AB.LET THE PERPENDICULARS FROM F TO CB,CA,AD,BE MEET THEM IN P,Q,M,N RESPECTIVELY.PROVE THAT P,Q,M,N ARE COLLINEAR ...

What is the product of roots? ...

The three points (– 2, 2), (8, – 2) and (– 4, – 3) are the vertices ...

Find the radius of the circle inscribed in the square. *Image* ...

Vertices of a figure are (– 2, 2); (– 2, – 1); (3, –1); (3, 2), it is a ...