x2+1x2 এর মান কত হলে x+1x2=a হবে?
A credit sale of Tk. 7,500 is made on June 13, terms 2/10, net/30. A return of Tk. 500 is granted on June 16. The amount received as payment in full on June 23 is-
একটি পঞ্চভুজের সমষ্টি: