xplicación paso a paso:
sin a/ cos a + cos a/ sin a -1/sina*cos a
(sin a * sin a + cos a *cos a -1)/sin a *cos a
(sin^2 a+ cos ^2 a-1)/ sin a *cos a
(1-1)/sin a cos a
=0
REspuesta 0
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xplicación paso a paso:
sin a/ cos a + cos a/ sin a -1/sina*cos a
(sin a * sin a + cos a *cos a -1)/sin a *cos a
(sin^2 a+ cos ^2 a-1)/ sin a *cos a
(1-1)/sin a cos a
=0
REspuesta 0