2 years ago

Which must be true?

Mathematics

1 answer:

Eva8 [605]2 years ago

5 0

Answer:

PSC=PTC

They are the same angle

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2 years ago

T(z)= sin^2(z/4), {-3 ≤ z ≤ 8}

Usimov [2.4K]

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Step-by-step explanation:

T(z)=d/dz(sin^2*z/4)

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2 years ago

Which equation represents the circle described?

bazaltina [42]

We have the equation:

$x^2+y^2-8x-6y+24=0$

By arranging this equation in terms of x and y, we have:

$x^2-8x+y^2-6y=-24 \\ \\$

By using the method of completing the square, we have:

$x^2-8x+\mathbf{\left(\frac{8}{2}\right)^2}+y^2-6y+\mathbf{\left(\frac{6}{2}\right)^2}=-24+\mathbf{\left(\frac{8}{2}\right)^2}+\mathbf{\left(\frac{6}{2}\right)^2} \\ \\ x^2-8x+\mathbf{16}+y^2-6y+\mathbf{9}=-24+\mathbf{16}+\mathbf{9} \\ \\ \boxed{(x-4)^2+(x-3)^2=1}$