geometrik progressiya dastlabki n ta hadi yig'indisi
Geomet rik progressiy a dast labk i n t a hadi y ig’indisi
Maxraji bo’lgan geomet rik progressiy aning dast labk i n t a hadining y ig’indisi : ?????? ?????? = ?????? ?????? ( ?????? − ?????? ?????? ) ?????? − ??????
Masala 1 geomet rik progressiy a dast labk i y et t it a hadi y ig’indisini t oping. ?????? ??????= ? ?????? = ?????? ?????? ?????? ?????? = ???????????? ?????? = ?????? ?????? ?????? = ?????? ∙ (?????? − ?????? ?????? ) ?????? − ?????? = ?????? ∙ ( − ?????????????????? ) − ?????? = ?????????????????? ?????? ?????? = ?????? ?????? (?????? − ?????? ?????? ) ?????? − ??????
Masala 2 A gar geomet rik progressiy ada , ga t eng bo’lsa, uning birinchi hadini t oping. ?????? ?????? = ?????? ?????? (?????? − ?????? ?????? ) ?????? − ?????? ?????? ?????? = ?????? ?????? (?????? − ?????? ) ?????? − ?????? ?????? ?????? ?????? = ?????????????????? ∙ ( ?????? − ?????? ?????? ) ?????? − ( ?????? ?????? ) ?????? = ?????????????????? ∙ ?????? ?????? ???????????? ???????????? = ??????????????????
Masala 3 A gar geomet rik progressiy ada , bo’lsa, ? ?????? ?????? = ?????? ?????? (?????? − ?????? ?????? ) ?????? − ?????? − ???????????? = − ?????? ∙ (?????? − ?????? ?????? ) ?????? − ?????? − ???????????? = ?????? − ?????? ?????? ?????? ?????? = ???????????? ?????? ?????? = ?????? ?????? ?????? = ??????