Year 10 Advanced Maths: If T_n = 2n, find T_1, T_2, T_3

[spiary]

Well there is just one question I dont understand which my teacher gave me as homework, I've tried asking a few other students but they didn't know either. So would the person please explain the question to me and help me answer it. It is Question 6 B). Thank you.

 

[Quaid]

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\(\displaystyle T_{n} = 2n\)

The small n next to the variable T is called a subscript. It's used to indicate a number's position, in a list of numbers.

Unless you're told otherwise, n represents the Natural numbers {1, 2, 3, ...}

\(\displaystyle T_{16}\) is the 16th number, in the list.

\(\displaystyle T_{453}\) is the 453rd number, in the list, and so on.

To calculate the actual values of these numbers, you substitute a value for n in the expression 2n.

\(\displaystyle T_{16} = 2(16) = 32\)

\(\displaystyle T_{453} = 2(543) = 1086\)

That's about it. Are you good to go?

Cheers :cool: