first of all we have the 5th term and 2nd term
T5=768 =a*r^4
T2=-12=a*r ^1
make a subject of formula in the both equations
that is a=T2/r and T5/r^4
a=12/r and a=768/r^4
when u equate them u will get
-64=r^3 so r=-4 then to find a that is 1st term
since second term is T2=a*r=12 an r=-4 then
a=12/-4 hence a=-3
The correct answer is C. :)
Answer: 
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Work Shown:
The trick here is to first simplify the expression so that the 
term in the very lower denominator cancels out. This is to avoid dividing by zero. Once this division by zero error is avoided, we can replace the delta x term with 0 and evaluate the limit as approaches 0 from the right or positive direction.
L=5+2w would be the best answer
D
hope this helps
this is because the .3 is repeating but it is the same number repeating(it is a pattern)
