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cpt Group Title

Find the area between the curve y = cos(x) and the x-axis from x = 1 to x = 2 radians.

  • 10 months ago
  • 10 months ago

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  1. myininaya Group Title
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    so is the curve all above the x-axis from x=1 to x=2?

    • 10 months ago
  2. myininaya Group Title
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    Let's think about this. 1 is in between pi/4 and pi/3 2 is less than pi |dw:1387146930400:dw| But from pi/4 to pi cos isn't always positive, is it?

    • 10 months ago
  3. myininaya Group Title
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    In fact it switches from positive to zero when we get to pi/2

    • 10 months ago
  4. myininaya Group Title
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    |dw:1387147008713:dw|

    • 10 months ago
  5. myininaya Group Title
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    you want to find the evaluate two integrals for this problem.

    • 10 months ago
  6. myininaya Group Title
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    One will be from 1 to pi/2 the other will be from pi/2 to 2

    • 10 months ago
  7. myininaya Group Title
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    take the absoluste value of the second integal because it will result in a negative number since it is all under the x-axis there

    • 10 months ago
  8. myininaya Group Title
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    I will back later.

    • 10 months ago
  9. cpt Group Title
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    Alright. I got it thanks :D

    • 10 months ago
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