Question

(vi) sec 50° sin 40° + cos 40° cosec 50°.​

Answer 1

Answer:

2

Step-by-step explanation:

sec (90˚-40˚) sin 40˚ + cos (90˚-50˚) cosec 50˚

cosec 40˚ sin 40˚ + sin 50˚ cosec 50˚

1 + 1                                 (since cosec A * sin A=1 .  and .  sin A * cosec A=1)

2

Thank you

with regards ,

Mugdho Ghosh