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Hey !
#1564: Graduate Record Examination.
#1565: Test of English as a Foreign Language.
Hi, I could use some help with this ...
1/2+3/2²+...+(2n-1)/2^n=1+2(1-1/(2^(n-1))-(2n-1)/2^n
Hello there,
#1517: Formic acid, also called methanoic acid.
#1511: Fluorine, Chlorine, Bromine, Iodine and Astatine.
hello there,
#1510: Helium, Neon, Argon, Krypton, Xenon and Radon.
Hi ganesh,
#2424: A = 29
Hi ganesh,
#1504: Near-Death Experience
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