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Ta có: C= \(\frac{3^{99}}{3^{100}}\)+\(\frac{3^{98}}{3^{100}}\)+...+\(\frac{1}{3^{100}}\)
=\(\frac{3^{99}+3^{98}+...+3+1}{3^{100}}\)
=\(\frac{1+3+3^2+...+3^{99}}{3^{100}}\)
=\(\frac{3^{100}-1}{3^{100}}\)
=1
M=
1. Taller ~> Tallest
2. Shortest ~> Shorter
3. China ~> Chinese
4. In ~> Is
1.How old is she?->What is her age?
2.The bookstore is to the right of the toy store.->The toy store is to the left of the bookstore.
3.How much is a bowl of noodles?->What is the price of a bowl of noodles?
4.Orange is her favorite drink.->She like orange best.
chúc bn hok tốt
1. How old is she?
\(\Rightarrow\) What is her age?
2. The bookstore is to the right of the toy store.
\(\Rightarrow\) The toy store is to the left of the bookstore.
3.How much is a bowl of noodles?
\(\Rightarrow\) What is the price of a bow of noodles?
4.Orange is her favorite drink.
\(\Rightarrow\) She likes orange.
2.My parents was happy when I took my first steps.
Tìm x mà là toán hả bạn????
Bài khó nhỉ nhưng tìm x cx là toán mà