3 years ago

Pls help. ............

Mathematics

2 answers:

LuckyWell [14K]3 years ago

8 0

Answer:

Step-by-step explanation:

When they are in the | | that means that they can only be a real number which in this case means positive for the negative 5. So it will become 5 + 6 which is 11.

malfutka [58]3 years ago

5 0

Answer:

11,

Step-by-step explanation:

the two lines makes it positive, and so 5+6= 11

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4 years ago

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SVETLANKA909090 [29]

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3 years ago

Read 2 more answers

Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (−3,1). An equation of the tan

valina [46]

$2(x^2+y^2)^2=25(x^2-y^2)$

Let $y=y(x)$ , so that differentiating both sides wrt $x$ gives

$4(x^2+y^2)\left(2x+2y\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(2x-2y\dfrac{\mathrm dy}{\mathrm dx}\right)$

If $x=-3$ and $y=1$ , the above reduces to

$40\left(-6+2\dfrac{\mathrm dy}{\mathrm dx}\right)=25\left(-6-2\dfrac{\mathrm dy}{\mathrm dx}\right)\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac9{13}$