For e^x to equal 0, 1/e^-x would have to equal 0. There is no denominator by which you could divide a non-zero number to get 0. If there were, then 1/0 would equal e^-x, and we all know that you can’t divide by 0. Can e ever equal zero? The function ex considered as a […]

How to turn off notifications on Android devices? To stop notifications on your Android smartphone, open your notification panel. Now, tap and hold the notification you do not want to receive anymore. Once the notification asks you to choose between ‘Silent’ and ‘Alerting’, choose ‘Silent’ and then press ‘Save’. How do I turn off alerts […]

The Six Best Ways to Start an Email 1 Hi [Name], In all but the most formal settings, this email greeting is the clear winner. 2 Dear [Name], Although dear can come across as stuffy, it’s appropriate for formal emails. 3 Greetings, 4 Hi there, 5 Hello, or Hello [Name], 6 Hi everyone, How do […]

How do you attach a file to an email in Windows 10? Replies (3)  Open Windows Mail and create a new e-mail message. Click the Attach File to Message button. In the Open dialogue box that appears, select the file you want to attach and then click Open. With the name of the attached […]

Using dark mode is helpful in that it’s easier on the eyes than a stark, bright white screen. However, using a dark screen requires your pupils to dilate which can make it harder to focus on the screen.When your pupils constrict under bright light, your vision sharpens. What is the advantage of dark mode? The […]

What not to pack in boxes when moving? What NOT to Pack When Moving Household cleaners. Lighter fluid. Fertilizer and Weed Killer. Perishables (moving the kitchen) Ammunition. Car Batteries. Moving Documents. Cash, Wills, Deeds, Jewelry, and Other Valuables. How do I ship multiple CDs? Packing Materials If you’re sending several loose discs, stack them with […]

Make and play a slideshow Tap Library. View photos by All Photos or Days, then tap Select. Tap each photo you want to include in the slideshow, then tap . Tap Slideshow from the list of options. To change the slideshow theme, music, and more, tap the screen while the slideshow plays, then tap Options. […]

How to Disable JavaScript in Safari on a Mac Open Safari. Open the Safari menu and select Preferences. The keyboard shortcut for Preferences is Command+, (comma). Go to the Security tab. Clear the Enable JavaScript check box to disable the feature. Should I turn off JavaScript in Safari? With that in mind, we recommend against […]

Select all is selecting all text, files, or other objects currently listed or displayed. In most programs, pressing Ctrl + A selects (highlights) everything in the current window. For example, while in Microsoft Word, if you press the Ctrl + A shortcut keys, all text in the document is selected. What is the meaning of […]

To summarize, we use arrow notation to show that x or f(x) is approaching a particular value. Arrow Notation. Symbol. Meaning. x→a− What does this symbol mean in maths? This symbol < means less than, for example 2 < 4 means that 2 is less than 4. This symbol > means greater than, for example […]