Laws of indices (part 2)

A follow on from my previous video where we talk about the less well known about laws of indices (+ examples). Check out part 3 where we use them to solve algebraic index equations.

[juliananorman]

My teacher is literally teaching this right now in online class and I'm lost, so I followed a pic here

[aisosaatoe]

Thanks a lot .
Am more confident now about my exam .

[angelmendez-rivera]

I think it may be worth not merely explaining what the laws of exponents are, but explaining why they are true. For example, a^0 = 1 is true because a^m = a^(m + 0) = a^m·a^0, and because a^m in general is nonzero, a^0 = 1. A similar principle applies for a^(-m). Also, claiming these cannot be proven is not quite accurate either. They follow directly from the definition of exponentiation without really needing to make further assumptions. The only ones you can claim cannot be proven are for fractional exponents, due to various complications that arise for those.

[mariondennis]

Not a bad class but explanations aren’t very precise. And are too fast. After stating a law an explanation using actual numbers should be done to aid further understanding.