toleratingexist toleratingexist

20-03-2017
Mathematics

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Why would knowing the Pythagorean identity sin2x + cos2x = 1 and the sum identities allow you to prove all the other identities?

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jinhaworld jinhaworld

20-03-2017

If you divided each side by (sinx)(sinx), the result is 1+(cotx)(cotx)=(cscx)(cscx)

If you divide each side by (cosx)(cosx), the resut is 1+(tanx)(tanx)=(secx)(secx)

These are the basic trigonometric identities.

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Аноним Аноним

20-03-2017

These are simple trigonometric identities.

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