<prompt> Nambaritextcis 75circ textcis 83circ textcis 91circ dots textcis 147circimeonyeshwa katika fomu r , textcis theta, ambapo r 0 na 0circ le theta 360circ. Pata theta kwa digrii.  <response>: Kwanza, tunaona kwamba hatua za pembe huunda mlolongo wa hesabu ambao wastani wake ni 111circ.Tuna hiyoanzaaligntextcis 75circ textcis 83circ textcis 91circ dots textcis 147circ fractextcis 75circ textcis 83circ textcis 91circ dots textcis 147circ maandishicis 111circ cdot maandishicis 111circ textcis -36circ textcis -28circ textcis -20circ dots textcis 36circ maandishicis 111mduara.endalignSheria na masharti ya jumlatextcis -36circ textcis -28circ textcis -20circ dots textcis 36circinaweza kuunganishwa katika masharti ya umbo textcis ncirc textcis -ncirc, naanzaaligntextcis ncirc textcis -ncirc cos ncirc i sin ncirc cos ncirc - i sin n mduara 2 cos nmduara,mwishoalignambayo ni halisi. Kwa hiyo,textcis -36circ textcis -28circ textcis -20circ dots textcis 36circni halisi. Hebur textcis -36circ textcis -28circ textcis -20circ dots textcis 36circ.Kishatextcis 75circ textcis 83circ textcis 91circ dots textcis 147circ r , text cis 111circ,hivyo theta 111circ. 