DIRECT AND INVERSE PROPORTIONS
their corresponding values remain constant. That is, x/y = = k where corresponding to the values x1, x2 of x respectively, then
Category: Basics
COMPARING QUANTITIES
Discount = Marked Price – Sale Price (S.P.) Discount = Discount % of Marked Price cost price = buying price + overhead […]
LINEAR EQUATION IN ONE VARIABLE
An algebraic equation is an equality involving variables. It has an equality sign. The expression on the left of the equality sign […]
ALGEBRAIC EXPRESSIONS, IDENTITIES AND FACTORISATION
Algebraic Expression –3xy, 2xyz, 5×2, etc. Factorisation a2 + 2ab + b2 = (a + b)2 a2 – 2ab + b2 = […]
Introduction to Light
How do we see objects? When a beam of light falls on an object from the source of light (mainly, sun) then […]
Introduction to Chemical Effect of Electric Current
The chemical reaction that takes place in a conducting solution when an electric current is passed through it is called the chemical […]