book Maths Puzzle Numerical Ability

dear : i want to solve this limt

limt ( sin x - tan x ) / x^3 at x tandes to 0

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book Other Question

Calculate the return A if the bank compounds daily (n=365)
20,000 & 8% (n=365)
This is what I have so far:
A= 20,000 ( 1+.08/365) 365*3
A= 20,000 (1.00)^1095
= ?

Thanks, Christine Please help me with the following problem(s):

Graph the following conic, label the vertices and the center on each graph;

a. (x+5)^2 =(y-2)^2=16

b.(x-2)^2 + (y-2)^2=1