We save the definition: y = arcsin(x + 1) Let's differentiate: ddx(arcsin(x + 1)) Apply the differentiation rule: ddx(asin(f)) = ddx(f)·11 -f2 with f = x + 1 ddx(x + 1)1 -(x + 1)2 1 + 01 -(x + 1)2 ▶Derivative: 11 -(x + 1)2