This is the 5 th lesson of advance maths class 9 SEBA board Here we have discussed first what is INEQUALITY? PROPERTIES OF INEQUALITY PROOF OF TRANSITIVE PROPERTY PROOF OF ADDITIONAL PROPERTY PROOF OF MULTIPLICATIVE PROPERTY which are helpful to SOLVE PROBLEM and develop concepts portion of exercise 5.1 is solved In the coming videos we shall discuss other Exercise Questions Some important links related to advance maths videos SETS: LOGARITHMS: SPECIAL PRODUCT & FACTORISATION: SYSTEM OF NUMERATION