Important Formulas for Upcoming Group 2 Exam (Part 2) 💯

[@stayupdatedtnpsc]

Few Changes:
3. (a+b)^2 - (a+b)^2 = 4ab
4. (a+b)^2 + (a+b)^2 = 2(a^2+b^2)
In LCM HCF Fraction Formula:
LCM = LCM of Numerator ÷ HCF of Denominator
In Compound Interest Formula:
Half Yearly: A = P (1+r/200)^2n
Quarterly: A = P (1+r/400)^4n

[@marivijay4853]

Fraction LCM = LCM of Numerators/ HCF of denominators

[@stayupdatedtnpsc]

Yes

[@arunpandian8538]

Mode=3 median- 2 mean