If Siny = x Sin (a+y). Prove that
dy/dx=[Sin^2(a+y)]/Sina​

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Anyone know? will mark brainliest if correct