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BabaBlast [244]
2 years ago
12

Expression equivlant (x+5)^2

Mathematics
1 answer:
insens350 [35]2 years ago
4 0

Answer:

(x+5) (x+5)

Step-by-step explanation:

it's just (x+5)^2 twice

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If the equation is tan(2<em>x</em>) - 2 cos(<em>x</em>) = 0:

We have

tan(2<em>x</em>) = sin(2<em>x</em>) / cos(2<em>x</em>)

sin(2<em>x</em>) = 2 sin(<em>x</em>) cos(<em>x</em>)

So, rewriting the equation gives

tan(2<em>x</em>) - 2 cos(<em>x</em>) = 0

2 sin(<em>x</em>) cos(<em>x</em>) / cos(2<em>x</em>) - 2 cos(<em>x</em>) cos(2<em>x</em>) / cos(2<em>x</em>)= 0

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[<em>x</em> = <em>π</em>/2 + 2<em>nπ</em>   or   <em>x</em> = -<em>π</em>/2 + 2<em>nπ</em>]   or

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<em>x</em> = <em>π</em>/2 + 2<em>nπ</em>   or   <em>x</em> = -<em>π</em>/2 + 2<em>nπ</em>   or   <em>x</em> = <em>π</em>/6 + 2<em>nπ</em>   or   <em>x</em> = 5<em>π</em>/6 + 2<em>nπ</em>

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