AMH: A pre-U student's life

well that title doesn't refer to me actually, it's for Shiqin. yeap, kesian baru kelmarin ia tau yang ia ni bukan anak pertama, but yg kedua bcos her brother was adopted by another family 16 years ago(sepanjang umurnya lah tu). n kelmarin jua ia baru bejumpa with her brother tu, tapi inda teary(spoil cerita. haha). yatah since first lesson at school tadi ia balik2 mention ia masih hairan/bangan yang ia bnr nya ada brother tu. btw, si Ain terpikat arah abang nya *kirai2. haha

btw ada orang yg pro math di sini? need help on topic differentiation :D