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cos (x)-sin (x)=0

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

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cos(x)−sin(x)=0

Solution

x=π4 +πn

Degrees

x=45^◦+180^◦n

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Solution steps

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cos(x)−sin(x)=0

Rewrite using trig identities

1−tan(x)=0

Move 1 to the right side

−tan(x)=−1

Divide both sides by −1

tan(x)=1

General solutions for tan(x)=1

x=π4 +πn

Trigonometric Equation Examples

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

cos (x)-sin (x)=0

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