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If a,b,c,d are inG.P. while a-2,b-7,c-9,d-5 are in A.P. then a+b+c+d is divided by?


a)2   b)3    c)5    d)7

3 years ago

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Answers : (1)

										ans. Is -45.

Therefore,it is divided by 3 and 5.
3 years ago

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if the sum of first n terms of an A.P. is cn 2 ,then the sum of squares of these n terms is (A) n(4n 2 -1)c 2 /2 (B) n(4n 2 +1)c 2 /3 (C) n(4n 2 -1)c 2 /3 (D) n(4n 2 +1)c 2 /6
 
 
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Riddhish Bhalodia 27 days ago
 
The answer for your question is C bye all the best for your bright future................................................
 
Prabhakar ch 6 days ago
x 2 +2x+1=0,x=?
 
 
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manmath 6 days ago
 
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Respected sir / madam I need value of ∫ sin^4x / sin^4x+cos^4x
 
 
 
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