1.

4. Write the first five terms of the G.P. where nth· is given as:52 |(i) 4.39-1(ii)2n

Answer»

For 1 st termn= 1so4n= 2then4*3= 12n= 3= 36n= 4so 108nown= 581*4= 324

(2) nth term of GPTn = 5^n-1/2^n+1

Thus,T1 = 5^0/2^2 = 1/4T2 = 5^1/2^3 = 5/8T3 = 5^2/2^4 = 25/16T4 = 5^3/2^5 = 125/32T5 = 5^4/2^6 = 625/64



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