Question

prove that cos (90-a)/sin a =sin (90-a)/cos a​

Answer 1

Hence proved

Step-by-step explanation:

cos (90-a)/sin a =sin (90-a)/cos a

sina /sina = cosa /cosa

1 = 1

LHS = RHS

Answer 2

LHS = cos (90-a)/sin a= sina/sina= 1

RHS = sin (90-a)/cos a= cosa/cosa= 1

LHS=RHS