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3 years ago

Need help with these two math problems

Mathematics

1 answer:

Gnom [1K]3 years ago

8 0

Answer:

y = (x - 1)(x - 3)

y = (x + 2)^2

Step-by-step explanation:

Has roots at x = {1, 3}

y = (x - 1)(x - 3)

Has double root at x = -2

y = (x + 2)^2

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Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

1/sin10°-√3/cos10°=4

Alexandra [31]

Answer:

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=4$

Step-by-step explanation:

Given the expression

$\frac{1}{\sin \left(10^{\circ \:}\right)}-\frac{\sqrt{3}}{\cos \left(10^{\circ \:}\right)}=4$

Taking the left-hand side and solving it

$\frac{1}{\sin \left(10^{\circ \:}\right)}-\frac{\sqrt{3}}{\cos \left(10^{\circ \:}\right)}$

$\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=5.76$

and

$\frac{\sqrt{3}}{\cos \left(10^{\circ \:\:}\right)}=1.76$

so the expression becomes

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=5.76-1.76$

$=4$

Thus, we conclude that

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=4$

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3 years ago

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masya89 [10]

Answer:

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Step-by-step explanation:

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