Question

sin alpha + cosec alpha =2 ST sin 31 alpha +cosec31 alpha =2​

Answer 1

Answer:

sinα+cosecα=2

sinα+

sinα

1

=2

sin

2

α+1=2sinα

sin

2

α−2sinα+1=0

(sinα−1)

2

=0

sinα=1

hence,

cosecα=

sinα

1

=1

now,

sin

n

α+csc

n

α=(1)

n

+(1)

n

=1+1=2