Question

prove that cosecA(secA-1)-cotA(1-cosA)=tanA-sinA​

Answer 1

Answer:

cosecA(secA-1)-cotA(1-cosA)=tanA-si

Answer 2

1/sin a ( 1 - cos a / cos a ) - cos / sin ( 1-cos a )
= 1 - cos a ( cosec sec - cot )
= ( 1 - cos a ) ( sec - cos / sin )
= ( 1 - cos a ) ( sin^ / cos . Sin )
= ( 1 - cos a ) tan a
= tan a - sina