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The first thing to do when we are facing a trigonometry problem is to to draw the sine and cosine diagram on the unit circle. That takes very little time to do and is incredibly helpful to visualize the p...

Often using vector graphics is better for images with which you want to retain scalability, as vector graphics store the information of the shapes (objects) that make up the image instead of the colour of...

A hydrocarbon is a COMPOUND made from hydrogen and carbon elements ONLY. For example, crude oil is a mixture of hydrocarbons.

With a more wordy question like this, it is always best to break it up and write down all of the key pieces of information. So we want to work out the probability of picking: white AND white, OR, black AN...

These 2 processes can be easily confused because they are both based on the idea of molecules moving from an area of HIGH concentration to LOW concentration. Diffusion= movement of ANY molecule. From an a...