Perplexed
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I'm sure this is easy but it has got me baffled.
I'm told that the binomial theorem can be used to simplify the following formula
[math]x = \dfrac{1 - ay/2}{\sqrt{1-ay}}[/math]
to (approximately)
[math]x = 1 + a^2 y^2 / 8[/math]
if a << 1.
Thanks for any help or pointers on this one in particular, and/or general help on how the binomial theorem is used in cases like this.
Perplexed
I'm told that the binomial theorem can be used to simplify the following formula
[math]x = \dfrac{1 - ay/2}{\sqrt{1-ay}}[/math]
to (approximately)
[math]x = 1 + a^2 y^2 / 8[/math]
if a << 1.
Thanks for any help or pointers on this one in particular, and/or general help on how the binomial theorem is used in cases like this.
Perplexed