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Mamont248 [21]
3 years ago
8

Cos A+cosB+CosC=1+4sinA/2*sinB/2*sinC/2

Mathematics
1 answer:
Scrat [10]3 years ago
5 0
Socratic use det app
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A shelf holds 2 cans of tomato soup, 8 cans of vegetable soup, 1 can of chicken noodle soup, and 8 cans of potato soup. Without
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You have an 8 out of 19 chance to grab a potato soup.


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Add the following complex numbers:
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option c

Step-by-step explanation:

(4 - 2i) + (12 + 7i)

multiply the brackets first

4 - 2i + 12 + 7i

combine like terms

16 + 5i

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Given AACD and AABE, what is AB?
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Find the greatest common factor of 270 and 360. (Give the answer in the numerical form in the top box and in exponential form by
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5 0
4 years ago
Find dy/dt for the equation below.<br><br> 7x^3+2xy+3y^3=3
castortr0y [4]

dy/dt is -\frac{(21x^2+2y)\frac{dx}{dt}}{2x+9y^2}

What is differentiation?

Differentiation is a method of finding the derivative of a function. Differentiation is a process, in mathematics, where we find the instantaneous rate of change in function based on one of its variables. The most common example is the rate change of displacement with respect to time, called velocity.

We can find the dy/dx as shown below:

7x^3+2xy+3y^3=3

differentiating with respect to t.

7\frac{d(x^3)}{dt} +2\frac{d(xy)}{dt}+3\frac{y^3}{dt}=0

7\frac{3x^2dx}{dt}+2y\frac{dx}{dt}+2x\frac{dy}{dt}+3\frac{3y^2dy}{dt}=0

21\frac{x^2dx}{dt}+2y\frac{dx}{dt}+2x\frac{dy}{dt}+9\frac{y^2dy}{dt}=0

(21x^2+2y)\frac{dx}{dt}+(2x+9y^2)\frac{dy}{dt}=0

(21x^2+2y)\frac{dx}{dt}=-(2x+9y^2)\frac{dy}{dt}

-\frac{(21x^2+2y)\frac{dx}{dt}}{2x+9y^2}=\frac{dy}{dt}

\frac{dy}{dt}=-\frac{(21x^2+2y)\frac{dx}{dt}}{2x+9y^2}

Hence, dy/dt is -\frac{(21x^2+2y)\frac{dx}{dt}}{2x+9y^2}

Learn more about differentiations here:

brainly.com/question/25081524

#SPJ1

6 0
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