series and sequences/trig qn (1 Viewer)

Masaken · Oct 18, 2022

How would you go about part (i)? Is it something related to similar triangles?? I know BD = 6sintheta

Thanks in advance, I'm so confused

jimmysmith560 · Oct 18, 2022

Part (i) would involve the following:

$BD=6\sin \theta ,\:\angle DBE=\angle EDF=\angle FEG\:\text{etc}$ .

$DE=BD\sin \theta =6\sin ^2\theta ,\:EF\:=DE\sin \theta =6\sin ^3\theta$

I hope this helps!

series and sequences/trig qn (1 Viewer)

Masaken

Unknown Member

jimmysmith560

Le Phénix Trilingue

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