Is this correct for number 5 if not please help

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a. r'(–3, 1),  s'(–3, 5)b. r'(–1, 3),  s'(–5, 3)c. r'(1, 3),  s'(5, 3)d. r'(5, 3),  s'(1, 3)

Prove that quadrilateral is a rhombus.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.