What's the recursive formula of the geometric sequence below? 2, 6, 18, 54, 162, 486, ...

a1 = 2; an = an–1 ∙ (3)n–1 for n ≥ 1

a1 = 2; an = an–1 ∙ (3) for n ≥ 2

a1 = 3; an = an–1 ∙ (2)n–1 for n ≥ 2

a1 = 2; an = an–1 ∙ (2) for n ≥ 1

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

you just switch the numbers basically so it would be 3/17

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13