Plzzzz Solve plzz..

1.	Plzzzz Solve plzz..
Answer» GIVEN that, $\sf \: x = sin {}^{ - 1} (sin10) \\ \sf \: y = {cos}^{ - 1} (cos10)$ Now, $\sf \: sin(y - x) = sin(y)cos(x) - cos(y)sin(x) \\ \\ \longrightarrow \: \sf \: sin(y - x) = sin \{cos {}^{ - 1} (cos10) \}cos \{sin {}^{ - 1}(sin10) \} - \: cos\{cos {}^{ - 1} (cos10) \}sin \{sin {}^{ - 1}(sin10) \} \\ \\ \longrightarrow \: \sf \: sin(y - x) = cos10sin10 - sin10cos10 \\ \\ \longrightarrow \: \sf \: sin(y - x) = 0 \\ \\ \longrightarrow \: \sf \: sin(y - x) = \sin(\pi) \\ \\ \longrightarrow \boxed{ \boxed{\sf \: y - x = \pi}}$

Answer»

GIVEN that,