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sum from x=1 to infinity of x^n

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

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ddx

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

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domain 2cos²(x)

Solution

−∞ <x<∞

Interval Notation

(−∞ , ∞ )

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Solution steps

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(−3)⁻³

a^−b=1a^b :فعّل قانون القوى

(−3)⁻³=1(−3)³

=1(−3)³

(−3)³=−27

=1−27

a−b =−ab : استخدم ميزات الكسور التالية

=−127

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range 2cos²(x)

periodicity 2cos²(x)

inverse 2cos²(x)

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

sum from x=1 to infinity of x^n

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