answer:Absolutely! There are several mobile applications that provide reliable weather updates. Here are a few of them: 1. **BBC Weather**: This app provides detailed weather information along with hourly updates, a 10-day forecast, and even a global locations search feature. 2. **Weather.com (The Weather Channel)**: Their mobile app provides real-time forecasts, radar maps, and severe weather alerts. It also provides an extended 15-day forecast. 3. **AccuWeather**: This app offers minute-by-minute precipitation forecasts along with daily forecasts for the next two weeks. 4. **Yahoo Weather**: This app provides beautiful imagery with its weather updates. It includes hourly, 5-day, and 10-day forecasts. 5. **Weather Underground**: This app is known for its precise data and interactive radar, satellite maps, and severe weather alerts. All these apps are available for free download on both iOS and Android platforms. Some of them offer premium versions for an ad-free experience and additional features.

answer:Sure, here's how you can download the AccuWeather app on your Android phone: 1. Open the Google Play Store app on your Android device. 2. Tap on the search bar at the top and type AccuWeather. 3. Tap on the AccuWeather app from the list that appears. It should be the first one on the list with an orange sun logo. 4. Tap on the Install button to download and install the app. 5. Once the app is installed, you can open it directly from the Google Play Store, or you can find the AccuWeather icon in your app drawer. 6. Open the app and you may be prompted to allow AccuWeather to access your location. This will allow the app to give you weather forecasts for your current location. 7. You can now use the app to check the weather anytime you want!

answer:Absolutely! Here's a step-by-step guide on how to download the BBC Weather app on your iPhone: 1. Open the App Store on your iPhone. 2. Tap on the search icon (magnifying glass) at the bottom of your screen. 3. In the search bar at the top, type BBC Weather and tap Search. 4. The BBC Weather app should appear in the search results. It has a blue icon with a white cloud and the BBC Weather logo. Tap on it. 5. Tap on the Get button to download the app. You may be asked to enter your Apple ID password or use Touch ID/Face ID to proceed with the download. 6. Once the app is downloaded, you can open it directly from the App Store, or find it on your home screen. 7. When you open the app for the first time, it may ask for permission to access your location. Allowing this will enable the app to give you the weather forecast for your current location. 8. You're all set! You can now use the BBC Weather app to check the weather anytime.

answer:Since sin (π+α)=-sin α=-frac {1}{3}, we can deduce that sin α= frac {1}{3}. Therefore, frac {sin 2α}{cos α} = frac {2sin αcos α}{cos α} = 2sin α = 2 times frac {1}{3} = boxed{frac {2}{3}}. So, the correct answer is D. This problem primarily uses the cofunction identity and the double angle formula to simplify and find the value of the given trigonometric expression.