Question

simplify : cos 55° . cosec 35° - 1​

Answer 1

Answer:

0

Step-by-step explanation:

cosec 35°= cosec (90°-55°) = sec 55°

cosec 35°= cosec (90°-55°) = sec 55°So, sec 55° = 1/cos55°

cosec 35°= cosec (90°-55°) = sec 55°So, sec 55° = 1/cos55°So, cos 55° × 1/cos55° - 1

cosec 35°= cosec (90°-55°) = sec 55°So, sec 55° = 1/cos55°So, cos 55° × 1/cos55° - 1= 1 - 1 = 0