Question

1.)cot A-1/2-sec^2 = cotA/1+tan A

2.)sin(A-B)/cosAcosB+ sin(B-C)/cos B Cos C + sin(C-A)/cosCCos A=0

Answer 1

see the attachments i hope it will help you^_^

THANKS ❤:)

#Nishu HarYanvi ♥

Answer 2

AnsweR Is In Attachment ..
hope it Helps .❤❤