Gonzo231 Gonzo231

17-03-2017
Mathematics

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How do you verify the trigonometry expression cscx-1=1-sinx/sinx

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VampireJellyfish VampireJellyfish

17-03-2017

cscx = 1/sinx
So substitute cscx for 1/sinx
1/sinx - 1
1 can be written in terms of sinx
1 = sinx/sinx (anything over itself is 1)
1/sinx - sinx/sinx = (1 - sinx)/sinx

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