+1 +1

Continue reading# Author: Sergiu Funieru

## Chain rule differentiation : Learn Math (problems with solutions) [volume 3] {problem 2}

+1 This is problem 2 from Learn Math (problems with solutions) [volume 3]. +1

Continue reading## Second degree equation : Learn Math (problems with solutions) [volume 3] {problem 1}

0 This is problem 1 from Learn Math (problems with solutions) [volume 3]. 0

Continue reading## How to center vertically in LibreOffice Calc

0 Select the cell(s). Click on the Center Vertically button from the toolbar. Before centering (the word test is at

Continue reading## How to convert an image to negative using IrfanView?

0 Open the image. From the Image menu chose Negative (inverse image), then choose all channels. 0

Continue reading## How to scan using IrfanView?

0 From the File menu chose Select Scan / TWAIN Source and set the scanner you want to use. From

Continue reading## How to resize an image using IrfanView?

0 Open the image. From the Image menu chose Resize/Resample. 0

Continue reading## How to navigate to the next / previous image in IrfanView?

0 Press the Right key to go to the next picture. Press the Left key to go to the previous

Continue reading## How to toggle full screen in IrfanView?

0 Press the Enter key to go full screen. Press the Enter key to exit full screen. 0

Continue reading## What number is missing? : challenge 1 : 4 numbers : 1 number every 2 seconds

0 Here are 4 numbers: 5 3 8 2. You’ll see 3 of them in the next seconds. Can you

Continue reading