Dear Students, you have learnt about reflection of light, mirror, image formation by mirror, refraction of light and refractive index of a mdium. Now, let’s know what happen when a ray of light passes throuh rectangular glass slab ? What Read more…
Meaning of Quadratic Equation : https://youtu.be/i7ia5ibODJM Solution of Quadratic Equation by Factorization Method : Example 1 : https://youtu.be/mYN5gKOnH6Q Example 2 : https://youtu.be/252fdXY-sOc Example 3 : https://youtu.be/L3a3NF81WAg Sridhar Acharya Formula : https://youtu.be/cpP1WiGvhTo Nature of Two Roots of the Quadratic Equation : Read more…
1 ) Check whether the numbers 2,3,4,6 are in proportion or not. 2 ) Check whether the numbers 2.5,-2,-5,4 are in proportion or not. 3 ) Check whether the numbers 2,7,14,42 are in proportion or not. 4) Check whether the Read more…
RATIO 1 ) Write down the condition for which x : y becomes ratio of less inequality. Solution : x < y 2 ) Under which condition x : y becomes ratio of greater inequality ? Solution : x > Read more…
Type – 01 Short Answer Type Questions : 1 ) Which of the following polynomial is a quadratic polynomial . ( i ) x2 – 7x + 2 ( ii ) 7×5 – x ( x + 2 ) ( Read more…
G.C.D = Greatest Common Divisior H.C.F = Higest Common Factor L.C.M = Least Common Multiple Level – 01 1 ) Find G.C.D of 4a2 b2 , 20ab2 . Solution : First term = 4a2 b2 = 2 * 2 * Read more…
We have observed in our daily life, that a jewellery of silver is looked like a gold jewellery but it is not that. Only a layer of Gold is electroplated over the silver jewellery. Have you ever thought how electroplated Read more…
Find the values of (0° ≤ θ ≤ 90° ) for which 2 sinθ cosθ = cosθ. Solution : 2 sinθ cosθ = cosθ ⇒ 2 sinθ cosθ – cosθ = 0 ⇒ cosθ ( 2 sinθ – 1 ) Read more…
If sin 10θ = cos8θ and 10θ is a positive acute angle, then find the value of tan9θ. Solution : sin 10θ = cos8θ [ ∵ sin ( 90 – θ ) = cos = θ ] ⇒ sin 10θ Read more…
The length, breadth and height of a cuboid room be a unit, b unit and c unit respectively and a + b + c = 25, ab + bc + bc = 240.5 then find the length of the longest Read more…