The given sequence is 4,12,36,108....
Here we can observe the first term
= 4 ,
and so on.
The common ratio (r)=![\frac{12}{4}=3](https://tex.z-dn.net/?f=%20%5Cfrac%7B12%7D%7B4%7D%3D3%20)
Since the common ratio is greater than 1,
Therefore the sum of the geometric series = ![\frac{a(r^{n}-1)}{r-1}](https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%28r%5E%7Bn%7D-1%29%7D%7Br-1%7D%20)
Since we have to find the sum of first seven terms, so n=7
=![\frac{4(3^{7}-1)}{3-1}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%283%5E%7B7%7D-1%29%7D%7B3-1%7D%20)
=4372.
Therefore, option C is the correct answer.
Answer:
A. Elements and Compounds
I think
Step-by-step explanation:
Answer:
dont know
Step-by-step explanation:
dont know lol
Answer:
2
Step-by-step explanation:
because its the middle (i think)
median=middle