What is the meaning of Q E D in R D Sharma(book) He use it after proving every theorem - Maths - Areas of Parallelograms and Triangles

Question

What is the meaning of Q E D in R D
Sharma(book)?
He use it after proving every theorem

Mansi Thakur · Accepted Answer

Q E D stands for 'quod erat demonstrandum'
which means 'hence proved''

What is the meaning of Q.E.D in R.D.Sharma(book)?He use it after proving every theorem.