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SVETLANKA909090 [29]

1 year ago

8

12. Find the differential coefficient of (x2+7) (x2+10)

1 answer:

USPshnik [31]1 year ago

3 0

Answer:

$We \: need \: to \: find \\ the \: differential \\ coefficient \: of \: the \\ function \: x2logxsinx \\ with \: respect \: to \: x. \\Let \: y=x \: 2logxsinx \\ We \: need \\ to \: find \: dxdy. \\Consider \\ y=x \: 2logxsinx \\ dxdy=dxd(x2)logxsinx+x2dxd(logxsinx) \\ =2x(logxsinx)+x2[sinxdxd(logx)+logxdxd(sinx)] \\ =2x(logxsinx)+x2[xsinx+logxcosx] \\ dxdy=2x(logxsinx)+xsinx+x2logxcosx$

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saul85 [17]

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Which expression represents a number n increased by 18

liraira [26]

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1 year ago

Given the following diagram, find the required measure.

Zielflug [23.3K]

Answer:

∠ 5 = 40°

Step-by-step explanation:

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3 0

2 years ago

This last one I need help on too

ExtremeBDS [4]

Answer:

$x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}$

Step-by-step explanation:

simplify $\frac{-3}{x-2}$ by putting the negative sign on the outside. $\frac{2x}{x-1}-\frac{2x-5}{x^2-3x+2}=-\frac{3}{x-2}$

find the LCM of the denominators. It is (x-1)(x-2). Multiply by the LCM:

$\frac{2x}{x-1}\left(x-1\right)\left(x-2\right)-\frac{2x-5}{x^2-3x+2}\left(x-1\right)\left(x-2\right)=-\frac{3}{x-2}\left(x-1\right)\left(x-2\right)$

Simplify:

$2x\left(x-2\right)-\left(2x-5\right)=-3\left(x-1\right)$

solve: $x=\frac{3}{4}+i\frac{\sqrt{7}}{4},\:x=\frac{3}{4}-i\frac{\sqrt{7}}{4}$

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2 years ago