Yup remember your here!

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This is the key part of this *hence* question: expressing tan 2`x` as a differential using your earlier answer. May Heaven help you if you're trying to integrate tan 2`x` on your own! (At least if you're an O-Level student anyway :P)

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=

=

= (corr. to 5 sig. fig.) CORRECTO!

A little thought on the integral sign: it looks more like the figure just under the strings of a violin, but I do agree that it is rather like a tangent curve. My E+A-math teacher says tangent curves are like "pretty ladies in a beauty pageant".

OMG the pageant must be held outdoors since tangent curves tend to reach high into infinity! Sorry lame math jokes I know ...

And when I put E and A together I instantly thought of the slogan of EA games (I don't play any EA games, though): *EA Games - Challenge Everything.*

Waiting for more math challenges! Stay tuned ðŸ˜‰

p.s. the math expressions are all stuck together because when I tried to separate them there was always some problems with the display.

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