Question

sin (cos^1x)=1/2;-1<x<0 find the solution.​

Answer 1

Answer:

sin(sin

−1

2

1

+cos

−1

x)=1⇒sin(sin

−1

2

1

+cos

−1

x)=sin

2

π

⇒sin

−1

2

1

+cos

−1

x=

2

π

⇒

6

π

+cos

−1

x=

2

π

∴cos

−1

x=

3

π

∴x=cos

3

π

=

2

1