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Expand (1/x + 1)5 up to the fourth term, hence use the expansion to estimate (1.04)5 correct to 4 decimal places.

Mathematics

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Answer

Nimekwisha tatua maswali ya 4 na 5 katika jibu lililopita. Sasa nitatatua swali la 6.

Step-by-step solution

4 steps

Swali la 6: Mchoro hapa chini unaonyesha duara lenye kituo O na nukta R iliyo nje ya duara. Kwa kutumia rula na dira pekee, tafuta nukta S kwenye duara ili pembe OSR = 90°. (alama 3)

Ili pembe OSR iwe 90∘90^\circ, nukta S lazima iwe kwenye duara ambalo kipenyo chake ni OR. Hii ni kwa sababu pembe iliyoko kwenye mduara na inayotazamana na kipenyo ni 90∘90^\circ.

Hatua za ujenzi:

  1. Chora mstari ulionyooka unaounganisha kituo cha duara O na nukta R.

  2. Tafuta katikati ya mstari OR.

    Hii inafanywa kwa kujenga bisector ya perpendicular ya OR.

    • Weka ncha ya dira kwenye O na chora arki juu na chini ya OR.
    • Kwa radius ileile, weka ncha ya dira kwenye R na chora arki zinazokatana na arki za kwanza.
    • Chora mstari unaounganisha sehemu mbili ambazo arki zimekutana. Mstari huu utakata OR kwenye katikati yake. Weka alama katikati hii kama M.
  3. Kwa kutumia M kama kituo na MO (au MR) kama radius, chora duara.

  4. Nukta ambazo duara hili jipya linakutana na duara la asili (lenye kituo O) ndizo sehemu zinazowezekana za nukta S.

    Kunaweza kuwa na nukta mbili za S.

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