Derivative of cos(4x)

Mathematics

1 answer:

son4ous [18]3 years ago

7 0

D/dx ( cos (4x)) = - sin (4x) · d/dx ( 4x) = - 4 sin (4x)

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Answer:

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Find the TWO integers whos product is -12 and whose sum is 1<br>

julsineya [31]

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$\rm Numbers = 4 \ and \ -3.$

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .

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$\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}$