Question

answer please immediately​

Answer 1

Answer:

Step-by-step explanation: (sin@ )/1-cos@/sin@   + (cos@)/1-sin@/cos@

={ sin²@(cos@-sin@) + cos²@(sin@-cos@)}/(sin@-cos@)(cos@-sin@)

=(sni²@-cos²@)/sin@-cos@ = sin@ + cos@