instruction: Switch to Scientific mode and find the value of tan 30

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    }
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      }
      class_name: "android.widget.Button"
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    }
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      }
      class_name: "android.widget.Button"
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    }
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      class_name: "android.widget.TextView"
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    nodes {
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      class_name: "android.view.View"
      content_description: "Advertisement"
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      is_focusable: true
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      class_name: "android.widget.Image"
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    }
  }
}


assistant: !FUNCTIONCALL{"name": "navigate_back", "parameters": {}}