Question

find the value of cosec 70 -sec20

Answer 1

Hii friend!

Cosec 70 - sec 20
= cosec 70 - sec (90-70)
= cosec 70 - cosec 70
= 0

Formula used :
sec (90-a) = cosec a

Hope it helps

Answer 2

Answer: 0

Step-by-step explanation:

cosec 70° - sec 20°

= cosec (90°-70°) - sec 20° [ ∵ cosec (90°- θ) = sec θ ]

= sec 20° - sec 20°

= 0

You're welcome!