<prompt> Tathmini sin1998circ237circsin1998circ-1653circ.  <response>: Tuna hiyoanzaaligndhambi 1998circ 237circ dhambi 1998circ - 1653circ dhambi 2235circ dhambi 345circ dhambi 75zingira dhambi -15zingira -dhambi 75zingira dhambi 15zingira -cos 15circ sin 15circ -frac12 2 cos 15circ sin 15circ -frac12 sin 30circ -frac14.mwishopanga 