triangle
4 x 4 = 16
er the following questions :
The first term of two A.P.s are equal and the ratios of their common
differences is 1 : 2. If the 7th term of first A.P. and 21th term of
a tod=23
second A.P. are 23 and 125 respectively. Find two A.P.s.
atelidera
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PPT-010
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