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3 years ago

If you and answer any of these 7-9 that would really help!! (pic below)

Mathematics

2 answers:

insens350 [35]3 years ago

8 0

Answer:

7. 8x^2 + 3y^2

8. 9y^4 -- 8x

9. 5x^2- 2x- 3

Step-by-step explanation:

IgorC [24]3 years ago

5 0

7 is 6x^2 + 3y^2
8 is 9y^4 - 8x
9 is 5x^2 - 2x - 3

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3 years ago

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Korvikt [17]

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$\huge \boxed{\red{ \boxed{ - \cos(x) + C}}}$

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<h3>to understand this</h3><h3>you need to know about:</h3>

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PEMDAS

<h3>tips and formulas:</h3>

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<h3>let's solve:</h3>

$\sf \: rewrite \: \tan( \theta) \: as \: \dfrac{ \sin( \theta) }{ \cos( \theta) } : \\ = \displaystyle \int \: \frac{ \sin(x) }{ \cos(x) } \cos(x) \: dx \\ = \displaystyle \int \: \frac{ \sin(x) }{ \cancel{\cos(x) }} \: \cancel{ \cos(x)} \: dx \\ = \displaystyle \int \: \sin(x) \: dx$
$\sf \: use \: the \: formula : \\ \sf \displaystyle - \cos(x)$
$\sf add \: constant : \\ - \cos(x) + C$

$\text{And we are done!}$

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3 years ago

Read 2 more answers