A.P. Need step by step solution
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Step-by-step explanation:
Tn=a+(n-1)d
16= a+(11-1)d
16= a+10d
similarly
29= a+20d
on subtracting eq.2 from eq.1 we get
29-16= a+20d-(a+10d)
13= a+20d-a-10d
13= 10d
1.3=d
16= a+10d
16=a+10×1.3
16= a + 13
16-13=a
3=a
hence a= 3 and d= 1.3
34th term
tn= a+33d
= 3+33×1.3
= 3+42.9
= 45.9
55th term
tn= a+54d
= 3+54×1.3
= 3+70.2
= 73.2
#666
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