diện tích 25x^2+4y^2+100x-40y=400

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

☐²

x^☐

√☐

^□√☐

□□

log_□

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ddx

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

simplify solve for inverse tangent line

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area 25x²+4y²+100x−40y=400

Solution

A=60π

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Ellipse Area

For an ellipse with radiuses a,b the area is defined as: A=π· a· b

A=π· a· b

Calculate ellipse properties: (h, k)=(−2, 5), a=2√6, b=5√6

A=π2√6· 5√6

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A=60π

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

diện tích 25x^2+4y^2+100x-40y=400

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