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geometrik progressiya dastlabki n ta hadi yig'indisi

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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. 
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??????	−	?????? Masala 2  A gar geomet rik  
progressiy ada
  ,  ga t eng bo’lsa, uning 
birinchi hadini t oping. ??????	??????	=	
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??????	??????	=	??????	??????	∙	?????? Masala 5  A gar geomet rik  
progressiy ada
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?????? A gar geomet rik  progressiy ada     
bo’lsa,  ??????
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??????   geomet rik  progressiy ada dast labk i 
y et t it a hadi y ig’indisini t oping.????????????????????????
????????????????????????
???????????????????????? ????????????
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???????????? A gar geomet rik  progressiy ada
    ,  ,  ??????
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??????   y ig’indini t oping. ????????????
8
????????????   geomet rik  progressiy ada dast labk i 
y et t it a hadi y ig’indisini t oping.??????????????????	
??????
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?????????????????? ??????????????????
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−	
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?????????????????? A gar geomet rik  progressiy ada
     ,    ,   ??????
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??????   ,          bo’lsa, ??????????????????
??????????????????
?????????????????? Qolgan misollarni must aqil 
y echishga harak at  qiling!

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, ? ?????? ?????? = ?????? ?????? (?????? − ?????? ?????? ) ?????? − ?????? − ???????????? = − ?????? ∙ (?????? − ?????? ?????? ) ?????? − ?????? − ???????????? = ?????? − ?????? ?????? ?????? ?????? = ???????????? ?????? ?????? = ?????? ?????? ?????? = ??????