Question

Maths
Ritha P V's image
Ritha P V
March 6, 2019, 8:35 p.m.
If the equation (1 m^2)x^2 2mcx c^2-a^2=0 has equal roots then show that c^2=a^2 (1 m^2).
Answer
Maths
Abhilash Das's image
Abhilash Das
March 6, 2019, 8:34 p.m.
The diameter of the driving wheel of a bus is 140 cm.  How many revolutions per minute must take the wheel make in order to keep a speed of 66 kmph?
Answer
Poorvi Poorvikaa's image
Poorvi Poorvikaa
March 6, 2019, 8:22 p.m.
Maths
Answer
DEEPIKA.P Deepu's image
DEEPIKA.P Deepu
March 6, 2019, 8 p.m.

x=a cos^3 theta and y=a sin^3 theta then prove that dy÷dx=- cube root of y÷x

Answer
DEEPIKA.P Deepu's image
DEEPIKA.P Deepu
March 6, 2019, 8 p.m.

x=a cos^3 theta and y=a sin^3 theta then prove that dy÷dx=- cube root of y÷x

Answer
Maths
Ritha P V's image
Ritha P V
March 6, 2019, 7:48 p.m.
Area of a rectangle get reduced by 9 square units if its length is reduced by 5 units and breadth is increased by 3units. If we increase the length by 3 units and breadth by 2 units, area increases by 67 square units.  Find dimension of rectangle. 

Answer
Harsha Kodlyal's image
Harsha Kodlyal
March 6, 2019, 7:48 p.m.
Find the greatest six digit number that are exactly divisible by 18 24 36

Answer
Ayesha Sharma's image
Ayesha Sharma
March 6, 2019, 7:41 p.m.
  1. Sunil sharma
  2. Arti sharma
  3. Diya Sharma
  4. Rainy sharma
Answer
Maths
Ritha P V's image
Ritha P V
March 6, 2019, 7:32 p.m.

The ratio of the sum of m terms of two ap is (7n 1):(4n 27).Find the ratio of their 9th term.


Answer
Pranav Ik's image
Pranav Ik
March 6, 2019, 7:32 p.m.

Quadratic equation ex4.3 question no 6

Answer
Aman Lama's image
Aman Lama
March 6, 2019, 7:20 p.m.
From were we get 7 multiplying to both the side

Answer
Maths
Anshu Arora's image
Anshu Arora
March 6, 2019, 6:41 p.m.

A hemispherical bowl

 

Answer
Sampathkumar D's image
Sampathkumar D
March 6, 2019, 6:40 p.m.

A motor boat speed is 20 km/h in still water. It takes 1 hour more to go upstream than downstream to the same spot. Find the speed of the stream.

Answer
Pir Saqib's image
Pir Saqib
March 6, 2019, 6:37 p.m.

i want to learn

Answer
sonal suvarna's image
sonal suvarna
March 6, 2019, 6:32 p.m.

[a+b,b+c,c+a]=2[a b c]

Answer
Saswati Ghatak's image
Saswati Ghatak
March 6, 2019, 5:45 p.m.
If sinA =3/4,calculate cosA and tanA

Answer
Athika Rafath's image
Athika Rafath
March 6, 2019, 5:43 p.m.

The sum of numerator and denominator of a fraction is three less than twice denominator. If each numerator and denominator is decreased by 1, the fraction becomes 1/2 . Find the fraction

Answer