Question

tan A + cot A = sec A cosec A​

Answer 1

Step-by-step explanation:

Tan A +cot A

sinA/cosA +cos A/sin A

on taking LCM

(Sin²A+cos²A)/sinA cos A

As we know sin²A+cos²A=1

1/sinA cosA⇒cosecA secA                       

{1/cosA=secA, 1/sinA=cosecA}

Hence proved.............