Question

1 + Sen B = 0
ayuda por favor!! lo necesito urgente

Answer 1

Respuesta:

a )

tan² - sen² = tan² . sen²

( sen² / cos² ) - sen² = tan² . sen²

( sen² - sen² . cos² ) / cos² = tan² . sen²

sen² ( 1 - cos² ) / cos² = tan² . sen²

tan² . sen² = tan² . sen² → Solución

b )

( sec - tan ) ( csc + 1 ) = cot

( ( 1 / cos ) - ( sen / cos ) ) . ( ( 1 / sen ) + 1 ) = cot

( ( 1 - sen ) / cos ) . ( ( 1 + sen ) / sen ) = cot

( 1 - sen² ) / ( sen . cos ) = cot

cos² / ( sen . cos ) = cot

cos / sen = cot

cot = cot → Solución

c )

( 1 - sen ) . ( sec + tan ) = cos

( 1 - sen ) . ( ( 1 / cos ) + ( sen / cos ) ) = cos

( 1 - sen ) . ( ( 1 + sen ) / cos ) = cos

( 1 - sen² ) / cos = cos

cos² / cos = cos

cos = cos → Solución

d )

sen / ( 1 - cos ) = cos + cot

( sen / ( 1 - cos ) ) . ( ( 1 + cos ) / ( 1 + cos ) ) = cos + cot

( ( sen . ( 1 + cos ) ) / ( ( 1 - cos ) . ( 1 + cos ) ) = cosec + cot

( sen . ( 1 + cos ) ) / ( 1 - cos² ) = cosec + cot

sen ( 1 + cos ) / sen² = cosec + cot

( 1 + cos ) / sen = cosec + cot

( 1 / sen ) + ( cos / sen ) = cosec + cot

cosec + cot = cosec + cot → Solución