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RoseWind [281]
3 years ago
8

Does anyone can help me to prove this too?? Thank you before ....

Mathematics
1 answer:
prohojiy [21]3 years ago
3 0
\frac{1}{ cos^{2}  \alpha  } +  \frac{1}{ sin^{2}  \alpha  } =  \frac{ sin^{2}  \alpha   +  cos^{2}  \alpha   }{ sin^{2}  \alpha *  cos^{2}  \alpha  } =  \frac{1}{sin^{2}  \alpha *  cos^{2}  \alpha}
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-9(5-2)-111÷3 show all work ​
Tasya [4]

Answer:

-74

Step-by-step explanation:

First: 5-2=3

-9*3=-27

111÷3=37

Then do -27-37=-74

3 0
3 years ago
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I need help with this urgently!!
galben [10]

Answer:

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Step-by-step explanation:

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What method would be the easiest to solve this equation?
Advocard [28]

Answer:

1, -6

Step-by-step explanation:

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What is sin B ?
Neporo4naja [7]

Answer:

The answer to your question is sin B = \frac{8}{17}

Step-by-step explanation:

Sine is the trigonometric function that relates the opposite side and the hypotenuse.

In the picture, we have the hypotenuse and the adjacent side, so we must calculate the opposite side using the Pythagorean theorem.

                b² = c² - a²

                b² = 17² - 15²

                b² = 289 - 225

                b² = 64

               b = 8

Now, we can calculate the sine

               sin B = \frac{opposite side}{hypotenuse}

               sin B = \frac{8}{17}

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3 years ago
Please help ‼️‼️<br> i’ll give the brainliest thing if it’s correct
Rama09 [41]
This would be 85 use the percent in division
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