Question

cotA - cosA /cot A + cos A = cosecA -1/cosecA +1​

Answer 1

Step-by-step explanation:

cotA-cosA/cotA+cosA

=(cosA/sinA)-cosA/(cosA/sinA)+1

=cosA-sinAcosA/cosA+sinAcosA

=cosA(1-sinA)/cosA(1+sinA)

=1-sinA/1+sinA

=1-(1/cosecA)/1+(1/cosecA)

=cosecA-1/cosecA+1