Question

I'm From Iran and My English is very bad!

Answer 1

no problem ... try us

Answer 2

not to mention your penchance on directions too

Answer 3

i'm soory! \[\lim \sin5x - 7sinx \div 3x\]=?

Answer 4

nothin to worry about

Answer 5

feel free to use this left side for questions about math; use the chatbox to introduce yourself if you feel the need :)

Answer 6

lim as x goes to what?

Answer 7

\[x \rightarrow 0\]

Answer 8

the limit of a sum is the sum of its limits

Answer 9

amistre64 answer me?

Answer 10

\[\lim \frac{sin5x}{3x} - lim \frac{7}{3}\frac{sinx}{x}\]

Answer 11

the right side goes to 7/3

so its just a matter of determining the left side

Answer 12

yes

Answer 13

thank you very much!

Answer 14

\[\lim \frac{sin5x}{3x}*\frac{5}{5} - \frac{7}{3}\]

\[\lim \frac{5}{3}\frac{sin5x}{5x} - \frac{7}{3}\]

5/3 - 7/3 = -2/3 if i did it right

Answer 15

very very good

Answer 16

thank you!thank you!

Answer 17

youre welcome

Answer 18

exuse me
\[\lim \lim_{x \rightarrow \pi/4} \cos2x \div sinx - cosx\]=?

Answer 19

lim side of left is false.i type additional

Answer 20

@hamidaarb x -> π/4 ? or zero ?

Answer 21

oh... never mind ...got it ...different problem .

Answer 22

just plug in π/4 ... no restrictions

Answer 23

-√2/2