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Mnenie [13.5K]
2 years ago
15

Tan^2 0+Tan^2 30+Tan^2 60+Sin^2 0​

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
5 0

Answer:

2.996519411885697

Step-by-step explanation:

\tan(20)  +  \tan(230)  +  \tan(260)  +  \sin(20)  = 2.996519411885697

mark me brainliest

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Minimum point of the quadratic x^2+6x-2
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Answer:

(-3,-11)

Step-by-step explanation:

Compare the given quadratic equation with the general quadratic equation.

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x=-\dfrac{(6)}{2(1)}\\=-3

Subsitute -3 for x in given quadratic equation.

y=(-3)^2+6(-3)-2\\=9-18-2\\=-11

The minimum point is (-3,-11).

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Answer:

y = 89 x = 123

Step-by-step explanation:

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<em>to check:</em>

<em>x</em><em> </em><em>+</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>2</em><em>1</em><em>2</em>

<em>1</em><em>2</em><em>3</em><em> </em><em>+</em><em> </em><em>8</em><em>9</em><em> </em><em>=</em><em> </em><em>2</em><em>1</em><em>2</em>

<em>2</em><em>1</em><em>2</em><em> </em><em>=</em><em> </em><em>2</em><em>1</em><em>2</em>

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