How to solve proving problems of arithmetic progressions e.g - If pth term of an A.P is 1/q and its qth term is 1/p then show that its (pq)th terms is ---- 1/2 (pq + 1) ...easily??
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Let the first term is a
And common difference is d
a+(p-1)d=1/q
And a+(q-1)d=1/p
Now solve these two equation then you get the value of a and d.
And the value of a and d put in the equation of a+(pq-1)d and you can get your right answer easily.
And common difference is d
a+(p-1)d=1/q
And a+(q-1)d=1/p
Now solve these two equation then you get the value of a and d.
And the value of a and d put in the equation of a+(pq-1)d and you can get your right answer easily.
vinusha:
thank u for the answer but there is no b there...in the question...
Its ok
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