Question

please answer these question its urgent​

Answer 1

Answer:

Step-by-step explanation:

sinФ/1-cosФ=cosecФ+cotФ

sinФ/1-cosФX1+cosФ/1+cosФ

sinФ(1+cosФ)/1-cos²Ф                                                   {(1-cos²Ф)=sin²Ф}

sinФ+sinФcosФ/sin²Ф

sinФ/sin²Ф+sinФcosФ/sin²Ф

1/sinФ+cosФ/sinФ                                        {1/sinФ =cosecФ , cosФ /sinФ=cotФ}

cosecФ+cotФ

Hence proved.