1) sinx × cosx=sin35°sinx × cosx = sin35°sin(2x) = sin35°2x = 35°x = 17.5°
2) arcsin 2x = arccos xsin(arcsin 2x) = cos(arccos x)2x = xx = 0
1) sinx × cosx=sin35°
sinx × cosx = sin35°
sin(2x) = sin35°
2x = 35°
x = 17.5°
2) arcsin 2x = arccos x
sin(arcsin 2x) = cos(arccos x)
2x = x
x = 0