Question

if sin x + cosec x=2 then find the value of sin power 19x + cosec power 20 x

Answer 1

Step-by-step explanation:

We have sinx+cosecx=2

=>sinx+

sinx

1

=2

This means x=90

0

as maximum value of sinx=1 such that 1+1=2

Now, for any n, we have sin

n

90

0

+cosec

n

90

0

=1

2

+1

2

=2