prouver (tan(x)-cot(x))/(tan(x)+cot(x))=2sin^2(x)-1

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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ddx (9cot(x))

Solution

−9csc²(x)

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Solution steps

One step at a time

1019

Ecrire le problème dans le format d'une longue division

9| 101

Diviser 10 par 9 pour obtenir 1

9| 101

Diviser 11 par 9 pour obtenir 1

11.

9| 101.0

Diviser 20 par 9 pour obtenir 2

11.2
9\| 101.00
9
11
9
20
18
20

Diviser 20 par 9 pour obtenir 2

11.22
9\| 101.000
9
11
9
20
18
20
18
20

Diviser 20 par 9 pour obtenir 2

11.222
9\| 101.0000
9
11
9
20
18
20
18
20
18
20

Diviser 20 par 9 pour obtenir 2

11.2222
9\| 101.00000
9
11
9
20
18
20
18
20
18
20
18
20

Diviser 20 par 9 pour obtenir 2

11.22222
9\| 101.00000
9
11
9
20
18
20
18
20
18
20
18
20
18
2

S'arrêter à l'équation 0 décimale

La solution pour une longue division de 1019 est 11.22222…

11.22222…

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

prouver (tan(x)-cot(x))/(tan(x)+cot(x))=2sin^2(x)-1

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