sarahiouslyy sarahiouslyy

03-05-2017
Mathematics

contestada

What is the trigonometric expression of sec^2x - 1 divided by sec^2x ??

Respuesta :

ghanami ghanami

06-05-2017

hello :
(sec²x - 1) / sec²x = (sec²x / sec²x) -1/sec²x
= 1 -1/sec²x
= 1- (1/secx)²
= 1 -cos²x
= sin²x

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