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astraxan [27]
1 year ago
13

Derive this with respect to x

Formula1" title=" \frac{3}{(1 + secx) } " alt=" \frac{3}{(1 + secx) } " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Elenna [48]1 year ago
8 0

~~~~\dfrac{d}{dx} \left(\dfrac{3}{1 + \sec x} \right)\\\\\\=3 \dfrac{d}{dx} \left( \dfrac 1{ 1+ \sec x} \right)\\\\\\=3 \dfrac{d}{dx} (1+ \sec x)^{-1}\\\\\\=3 (-1) (1 + \sec x )^{-1 -1} \dfrac{d}{dx}( 1 + \sec x)\\\\\\=-3(1 + \sec x)^{-2}  ( 0 + \sec x  \tan x)\\\\\\=-\dfrac{3\sec x \tan x}{(1 + \sec x)^2}

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AleksandrR [38]

Answer:

R = sqrt[(IWL)^2/(E^2 - I^2)] or R = -sqrt[(IWL)^2/(E^2 - I^2)]

Step-by-step explanation:

Squaring both sides of equation:

     I^2 = (ER)^2/(R^2 + (WL)^2)

<=>(ER)^2 = (I^2)*(R^2 + (WL)^2)

<=>(ER)^2 - (IR)^2 = (IWL)^2

<=> R^2(E^2 - I^2) = (IWL)^2

<=> R^2 = (IWL)^2/(E^2 - I^2)

<=> R = sqrt[(IWL)^2/(E^2 - I^2)] or R = -sqrt[(IWL)^2/(E^2 - I^2)]

Hope this helps!

7 0
3 years ago
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snow_tiger [21]

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6 0
2 years ago
It takes Maya 30 minutes to solve 5 logic puzzles, and it takes amy 28 minutes to solve 4 logic puzzles. use models, to show the
nalin [4]

Answer:

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amy - 7 min per puzzle

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Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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Stolb23 [73]
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2 years ago
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nataly862011 [7]
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So if the original area was 47units², then the new area would be

47*6=282units²

Answer=282units²

5 0
3 years ago
Read 2 more answers
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