everyone here has got the talking part done and says that they are sharp in math, who here can actualy walk the walk
1. Suppose that (x_0,y_0)=(0,0) and for every positive interger n,
f(1/n,0)=1 and f(0.1/n)=-1. Does lim (x,y)-->(x_0,y_0) exist?
Prove your answer.
lets see who is really sharp
1. Suppose that (x_0,y_0)=(0,0) and for every positive interger n,
f(1/n,0)=1 and f(0.1/n)=-1. Does lim (x,y)-->(x_0,y_0) exist?
Prove your answer.
lets see who is really sharp
I teach Math at the college level, but I won't tell you where.hondaman1 said:
First of all, your question seems to have a mistake because
f(1/n,0)=1 and f(0.1/n)=-1 makes no sense ....
but I will assume you mean, f(1/n,0)=1 and f(0.1/n,0)=-1
as n --> infinity, your limit approaches f(0,0) but the limit of f(0,0) as n--> infinity is undefined because of the 1 and -1 so
NO, the limit doesn't exist.
Here is a question for people from my Statistics I class. It is from McClave-Sinrich.
At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 99 miles per hour (mph) and the standard deviation of the serve speeds was 13 mph. Assume that the statistician also gave us the information that the distribution of serve speeds was mound-shaped and symmetric. Find the percentage of serves that were hit with a speed between 86 and 112 mph. (HINT: This doesn't required any "calculation" if approxiamated)
At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 99 miles per hour (mph) and the standard deviation of the serve speeds was 13 mph. Assume that the statistician also gave us the information that the distribution of serve speeds was mound-shaped and symmetric. Find the percentage of serves that were hit with a speed between 86 and 112 mph. (HINT: This doesn't required any "calculation" if approxiamated)
I handicapped harness races and football in Math and civics. I rolled craps in Auto shop, dealt blackjack in U.S. History. Best math, 5 to 10 or join the Navy for 4. Both son and father math geniuses, me street hustler. Punk, hoodlum even a hooligan. Hope no one holds that against me...
Best Wishes...OF:howdy:
Best Wishes...OF:howdy:
That ain't no ****---I somehow made it through that class, and that was after MASSIVE hours studying.THE SHRINK said:
Math was a no brainer to me up until Calc 951 which I swear to this day was taught in a different language, because I still have absofukkinglutely no idea WTF they were trying to prove.
