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As level maths c1 rationalising


I've got to this part of the equation

And I'm not sure of the next steps I have to take to remove the denominator.

Thank you :smile:
Reply 1
Simplify the denominator to 4, that's it!
Rationalising the denominator is about changing the surd in a denominator to a rational number.
Reply 2
Original post by vc94
Simplify the denominator to 4, that's it!
Rationalising the denominator is about changing the surd in a denominator to a rational number.

That's great thank you!

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