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-Dominant- [34]
3 years ago
10

Please help me please

Mathematics
1 answer:
Marina86 [1]3 years ago
7 0
I THINK ITS B HOPE THIS HELP
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Use the function to fill in the blanks in the table.
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gnrg

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Find x and y <br><br> pls help
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Three dressers are places side by side. One dresser is 5 feet 11 inches wide, another is 5 feet 6 inches wide, and the third is
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Find the area of the triangle.<br> 7 yd<br> 24 yd
tino4ka555 [31]

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6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Cint%7B%5Bsin%289x%29cos%289x%29%5D%7D%20%5C%2C%20dx" id="TexFormula1" title="\int{[sin(9x)c
Sladkaya [172]

Recall the double angle identity,

sin(2x) = 2 sin(x) cos(x)

Then we can write

sin(9x) cos(9x) = 1/2 sin(2 • 9x) = 1/2 sin(18x)

Then

∫ sin(9x) cos(9x) dx

= 1/2 ∫ sin(18x) dx

= -1/2 • 1/18 cos(18x) + C

= -1/36 cos(18x) + C

though you could continue with another double angle identity,

cos(2x) = cos²(x) - sin²(x)

to rewrite the antiderivative as

= -1/36 (cos²(9x) - sin²(9x)) + C

= 1/36 (sin²(9x) - cos²(9x)) + C

5 0
2 years ago
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