Is it compulsory to take (a-d), (a+d), (a+3d), (a-3d) terms in 4consecutive terms of Ap...instead of taking a,a+d, a+2d, a+3d
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when you will solve them....both will give the same answer
mansimj2003:
But can uh pls tell me why we take (a-d), (a+d), (a-3d), (a+3d)
Answered by
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yes!!!
there are some specific rules for taking the terms.
so you have to take it like
(a-d)(a+d)(a+3d)(a-3d)
there are some specific rules for taking the terms.
so you have to take it like
(a-d)(a+d)(a+3d)(a-3d)
hope it helped you
It means there is no specific reason behind this...
yes
me too had the same confusion and finally understood that it is a rule
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