I have just started to learn function (self learning).
Can someone help me on how to work these out. If someone can get me started I will finish them off.:) Thanks!
f: x \rightarrow x-7
g: x \rightarrow \frac{1}{x}
h: x \rightarrow x^2
Have to work out:
gh: x \rightarrow
hg: x...
This is do with wave I think but I'm intrigued with this. As with waves sometimes they can cancel each other out but what about this:
Can light produce darkness?
Can noise produce quietness?