(i) HORIZONTAL METHOD In this method all expressions are written in a horizontal line and then the terms are arranged to collect all the group of like terms and then added.

COLUMN METHOD In this method each expression is written in a separate row such that like terms are arranged one below the other in a column.The the addition of terms is done column wise.

Which of the following is a group of like terms?

Express all the ratios in the terms of tangent.

In the expression given identify all the terms: 5x-7

In the expression given identify all the terms: 3x^2y

Form the differential equation of all non-horizontal lines in a plane.

In the expression given identify all the terms: 5x^2y+3

In the expression given identify all the terms: 7x^2-2x