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derivative of cos(2x)

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

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ddx

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(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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ddx (cos(2x))

Solution

−sin(2x)· 2

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ddx (cos(2x))

Apply the chain rule: −sin(2x)ddx (2x)

=−sin(2x)ddx (2x)

ddx (2x)=2

=−sin(2x)· 2

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היי, לשאול שאלה לגבי ddx (cos(2x)) או בחר מבין האפשרויות למטה

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

derivative of cos(2x)

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