SAB KUCH mja aayega
Last Activity: 7 Years ago
Dekh bhai pehele aap ye 4 term likh lo a-3d, a-d, a+d a+3d ... Inko sum 72 kr de yaha se A aa jayega fir 1 or 4 term exterme term h inko multiply kr 9 ko equate kro. ... Aur similarily 2nd or 3rd term ko 10 ke samne equate kro. Fir inka ratio le lo thik h