振幅 tan^2(x)+1

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(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

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範囲 3cos(2x+π4 )+1

Solution

−2≤ f(x)≤ 4

Interval Notation

[−2, 4]

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関数範囲の定義

関数が定義されている従属変数の値の集合

基本的な cos 関数の範囲は −1≤ cos(2x+π4 )≤ 1

−1≤ cos(2x+π4 )≤ 1

範囲の端に以下を乗じる:3

−3≤ 3cos(2x+π4 )≤ 3

範囲の端に加える:1

−2≤ 3cos(2x+π4 )+1≤ 4

ゆえに範囲は

−2≤ f(x)≤ 4

Solve instead

領域 3cos(2x+π4 )+1

周期性 3cos(2x+π4 )+1

振幅 3cos(2x+π4 )+1

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

振幅 tan^2(x)+1

Solution

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