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olganol [36]
3 years ago
14

Item 1

Mathematics
1 answer:
Nady [450]3 years ago
3 0

9514 1404 393

Answer:

  ∠1 = ∠3 = ∠5 = ∠7 = 81°

  ∠2 = ∠4 = ∠6 = 99°

Step-by-step explanation:

Vertical and corresponding angles are congruent. Angles 1 and 99° are supplementary, so ...

  ∠1 = 180° -99° = 81°

Then we have ...

  ∠1 = ∠3 = ∠5 = ∠7 = 81°

  ∠2 = ∠4 = ∠6 = 99°

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gizmo_the_mogwai [7]

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Step-by-step explanation:

Easiest way to do this is in reverse.

γ sin(2x − α)

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γ (cos α sin(2x) − sin α cos(2x))

Distribute:

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Solving:

sin(2x − π/3) = 1/2

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3 years ago
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Answer
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Step by step explanation

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