# 3 indefinite integration Qs

Update:

One more trigo. Q (not interation)

plz help, thx!

Rating
• 石石
Lv 5
8 years ago

I've finished. Just a minute of typing.

2012-07-22 19:33:54 補充：

2012-07-22 20:29:46 補充：

I use LaTeX environment.

MikTeX (Compiler) + WinShell (IDE) + mpedit (not used here)

2012-07-23 11:39:18 補充：

It should be AF=75sec40

so theta=17.4 dg.

4Questions --> is that too many?

2012-07-23 12:00:58 補充：

typo.

If you checked carefully, you see the question says (v,t)=(12,0)

2012-07-23 12:01:45 補充：

After all, it is tiring typing codes like:

Put $(v,t)=(0,12)$ into $v=3\sqrt{\ds 16-s^2}$, $s=0$. Hence

\begin{align*}

0&=\fr{1}{3}\sin^{-1}0+c\\

c&=0

\end{align*}

Then $s=4\sin 3t$. \\ \\

in LaTeX without visualizing the result of codes

Source(s): Typeset with LaTeX
• I mean the additional Q is not under the topic of "integration".

Sorry for typo!

2012-07-23 11:59:52 補充：

v = 3√(16 - s²)

Given when t=0, v = 12

Therefore, when t = 0,

12 = 3√(16 - s²)

4² = 16 - s²

s² = 0

s = 0

• 8 years ago

What do you mean by "not 'interation' " ?

2012-07-22 20:28:30 補充：

To 石石:

What software do you use?

2012-07-22 20:34:28 補充：

2012-07-23 11:50:45 補充：

I want to ask, in Q52,

3√(16 - s²) = 0 ⇒ s = 0 ????

s should be 4...

2012-07-23 12:14:46 補充：

okok........