For No.1 : (A+B)^N ...i oso dunno hw to expand..oopsy...
For No.2 : i didnt noe sin2x can change to 2sinxcosx..oops..
For No.5 : ermm..those ppl say that there are 14 horses..but gt ppl say they found 16...unfortunatly..im a noob..i only found 6...OoPs
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K la...yesterday went to watch Shooter with Vive and Robin..

it was like..nt bad since recently..i have been addicted to those action pac movies...then the main actor..he damn zhun..alot of headshot..lol..gt 1 part is...he injure..then steal the police car..then zhao..then all the other police chasing him...then vive tell mi.."like NFS:most wanted"...but to mi...it seems more like GTA...hahas...i dun really like the ending becuz the main actor kill all the last bosses with a pistol nia...duhx...but overall...is nice lahs..hahs...
oh..i gt something to complain..tt robin...sibei f sia....he meet mi 6pm at junction8..then i about 6.15pm then reach...then i call him and ask..
"Robin..where are u.."
u noe wat he say? he say..
"Oh..i still waiting for the bus..veri fast 1.."
wTh..suan le..next time go out wif robin..i noe wat to do le..lol..