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satela [25.4K]
4 years ago
13

A b c or d plzzzz hurry

Mathematics
1 answer:
shutvik [7]4 years ago
7 0

Answer:

a

Step-by-step explanation:


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Find the exact value by using a half-angle identity.<br><br> tan seven pi divided by eight
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Answer:

  1 -√2

Step-by-step explanation:

  \tan(x/2)=\dfrac{1-\cos(x)}{\sin(x)}\\\\\tan\left(\dfrac{1}{2}\cdot\dfrac{7\pi}{4}\right)=\dfrac{1-\cos\dfrac{7\pi}{4}}{\sin\dfrac{7\pi}{4}}=\dfrac{1-\dfrac{1}{\sqrt{2}}}{-\dfrac{1}{\sqrt{2}}}=\boxed{1-\sqrt{2}}

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3 years ago
Question 10: 5 ÷ 5 + 4 × 12
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Read 2 more answers
1/4 (-12+3) -8/3<br> Simplified
labwork [276]

Answer:

-59/12

Step-by-step explanation:

finish whats inSide brackets first

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