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Solve, exercise 5.1,Q.4,(xii)

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Solve, exercise 5.1,Q.4,(xii)
  • 2 answers

Vishakha Girl 5 years, 3 months ago

Thanks

Gaurav Seth 5 years, 3 months ago

(xii) √2, √8, √18, √32 …

Here,

a2 – a1 = √8-√2  = 2√2-√2 = √2

a3 – a2 = √18-√8 = 3√2-2√2 = √2

a4 – a3 = 4√2-3√2 = √2


Since, an+1 – an or the common difference is same every time.

Therefore, d = √2 and the given series forms a A.P.

Hence, next three terms are;

a5 = √32+√2 = 4√2+√2 = 5√2 = √50

a6 = 5√2+√2 = 6√2 = √72

a7 = 6√2+√2 = 7√2 = √98

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