03:06

In the given figure, AB||CD. Find the angles x, y and z / Lines and Angles / CBSE Class 9

05:42

Rationalising the denominator with 3 terms / Rationalise 1/(4+root2+root5) / Rationalisation / ICSE

04:28

A man standing on the bank of the river observes that the angle of elevation of a tree

24:20

Resultant and Equilibrium Analysis / Free Body Diagram / Equilibrium of Three Cylinders

06:32

If the zeros of the polynomial x^2 + px + q are double in value to the zeroes of 2x^2−5x –3. Find

05:42

Find the roots of the following quadratic equation 15x^2-10 root 6x + 10 = 0 / Quadratic Equations

04:10

Prove that (2- root 2)^2 is an irrational number / Real Numbers / Prove that (2-√2)^2

04:22

The line segment joining the points A(2,1) and B(5,-8) is trisected at this points P & Q where P

08:14

Rationalize the denominator (3 root2-2 root3)/(3 root2+2 root3) + root 12 / (root3 - root 2)

05:07

An object is near a concave mirror of 10 cm focal length. The image is 3 cm tall,inverted and 16 cm

12:52

Friction Problems in Engineering Mechanics / Resultant and Equilibrium Analysis / Applied Mechanics

06:01

From a window 15m high above the ground, the angle of elevation and depression of the top and foot

09:21

If alpha and beta are the zeros of the polynomial x^2-3x-2. Find a polynomial 1/(2α+β) and 1/(2β+α)

04:43

Let a and b be two positive integers such that a=p^3q^4 and b=p^2q^3, where p and q are prime number

04:20

If 4 times the 4th term of an AP is equal to 18 times the 18th term then find the 22nd term

05:33

If x = asin theta+bcos theta and y = acos theta-bsin theta, prove that x^2+y^2=a^2+b^2 /Trigonometry

21:50

O level / IGCSE Maths - Transformation / What is Translation / Advance Maths / Cambridge Maths

05:30

How to express rational number in p/q form / Express 0.0045 bar in p/q form / 82.23 bar in p/q form

07:28

Find ratio in which line 2x + 3y - 5 = 0 divides the line segment joining the points (8,-9) & (2,1)

05:01

At what distance from a concave mirror of focal length 10 cm should an object 2 cm long be placed

06:30

A straight highway leads to the foot of a tower. A man standing on the top of the 75 m high tower

08:01

A well of diameter 4 m is dug 14 m deep.The earth taken out is spread evenly all around the well

07:16

If x=1/7+4√3 and y=1/7-4√3 then the value of 5x^2-7xy-5y^2 / If x=1/7+4 root 3 and y=1/7-4 root 3

08:17

If α and β are the zeros of the quadratic polynomial f(x) =2x^2-5x+7,find a polynomial 2α+3β, 3α+2β

08:02

If log(x^2+y^2)= 2 tan-1(y/x) show that dy/dx =(x+y)/(x-y) / Differentiation / Derivative

06:35

If sec theta = x+1/4x, prove that sec theta + tan theta = 2x or 1/2x / Trigonometry Class 10 Maths

03:19

Prove that root 2 + 3/root 2 is irrational / Prove that √2 + 3/√2 is irrational / Real Numbers

14:53

Transformation - Reflection across X and Y axis / Reflection Rules / Reflecting shapes over a line

04:13

An illuminated object lies at a distance of 1 m from a screen.A convex lens is used to form an image

06:45

If the sum of the squares of the zeroes of the polynomials 6x^2+x+k is 25/36.Find the value of k

08:03

A solid wooden toy is in the form of hemisphere surmounted by a cone of same radius / Class 10 Maths

05:09

If the point C(-1,2) divided internally the line segment joining A(2,5) and B(x,y) in the ratio 3:4

05:01

The angle of elevation of a cloud from a point 60 m above a lake is 30° and the angle of depression

03:05

Expand (4a-2b-3c)^2 / Evaluate 4a-2b-3c whole square / Polynomials / Find the square of 4a-2b-3c

10:00

If tan theta + sin theta = m and tan theta - sin theta = n, show that m^2 - n^2 = 4√mn /Trigonometry

06:05

How to rationalise the denominator of a surd / (2root6-root5)/(3root5-2root6)=a+broot30

14:30

Sum of first five terms of an AP is 25 and the sum of its next five terms is -75.Find the AP

05:59

Transformation: Enlargement Shapes in Geometry / How to enlarge with a positive scale factor / GCSE

16:29

How to find support reactions on beams / Roller and Hinged Supported Beam / Engineering Mechanics

02:11

The sum of the radius of the base and the height of a solid cylinder is 20 cm. If total surface area

02:32

If one zero of the quadratic polynomial f(x)=4x^2-8kx-9 is negative of the other.Find the value of k

07:54

The sum of 4th and 8th terms of AP is 70.Find the sum of its first 25 terms / Arithmetic Progression

11:27

If y=log(root x+1/root x)^2 then prove that x(x+1)^2 d2y/dx2 + (x+1)^2 dy/dx = 2 / Differentiation

02:35

Prove that 4-5 root 2 is an irrational number / Prove that 4-5√2 is an irrational number

10:47

If alpha and beta are the zeros of the quadratic polynomial x^2-2x+3.Find a polynomial whose zeros

05:55

A circus tent is in the shape of a cylinder surmounted by a conical top of same diameter.

09:38

Prove that tan square theta + cot square theta + 2 = sec square theta+cosec^2 theta / Trigonometry

05:06

If root3 cot^2 theta - 4 cot theta + root 3 = 0 then find the value of cot^2 theta + tan^2 theta

11:45

How to rationalize the denominator 1/(root(11-2root30)) - 3/(root(7-2root10)) - 4/(root(8+4root3))

17:10

Roller & Hinge Supported Beam in Equilibrium / How to calculate support reactions on beams

04:20

If x^y=e^(x-y),prove that dy/dx=logx/(1+logx)^2 / Implicit Differentiation / Derivatives

13:45

In a simultaneous throw of a pair of dice. Find the probability of a doublet of prime numbers

05:51

The sum of first seven terms of an AP is 182.If 4th and 17th terms are in the ratio 1:5.Find the AP

07:34

The height of a cone is 30cm.A small cone is cut off from the top by a plane parallel to its base.

03:15

If a=2^2 x 3^x, b=2^2 x 3 x 5, c=2^2 x 3 x 7 and LCM(a,b,c)=3780 Find x value / Real Numbers Class10

05:22

Prove that cosec^2 theta + sec^2 theta= cosec^2 theta sec^2 theta / Prove that tan theta + cot theta

04:38

If x=1/(2-root3) find the value of x2-1/x2 / Rationalisation / If x=1/2-√3 find the value of x2-1/x2

10:20

Force and Couple System / A system of parallel forces is acting on a rigid bar / Applied Mechanics

05:38

Shiny lawn spheres placed on pedestals are convex mirrors. One such sphere has a diameter of 40cm

07:08

If y=e^asin^-1x then prove that (1-x^2)d^2y/dx^2-xdy/dx-a^2y=0 / Second Order Derivatives / Calculus