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" 1."(a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(...

" 1."(a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+dots***" to "11" terms "

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Find the sum (i) 1+(-2)+(-5)+(-8)+ … +(-236) (ii) (4-(1)/(n))+(4-(2)/(n))+(4-(3)/(n))+ … upto n terms. (iii) (a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+ … to 11 terms.

Find the sum (i) 1+(-2)+(-5)+(-8)+ … +(-236) (ii) (4-(1)/(n))+(4-(2)/(n))+(4-(3)/(n))+ … upto n terms. (iii) (a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+ … to 11 terms.

Find the sum [(a-b)/(a+b)+(3a-2b)/(a+b)+(5a-3b)/(a+b)+…+"to 12 terms"]

(log_(10)2=a,(log)_(10)3=bthen(log)_(0.72)(9*6) in terms of a and b is equal to (a) (2a+3b-1)/(5a+b-2)( b) (5a+b-1)/(3a+2b-2)(c)(3a+b-2)/(2a+3b-1) (d) (2a+5b-2)/(3a+b-1)

If (log)_(10)2=a ,(log)_(10)3=bt h e n(log)_(0. 72)(9. 6) in terms of a and b is equal to (a) (2a+3b-1)/(5a+b-2) (b) (5a+b-1)/(3a+2b-2) (c) (3a+b-2)/(2a+3b-1) (d) (2a+5b-2)/(3a+b-1)

If (log)_(10)2=a ,(log)_(10)3=bt h e n(log)_(0. 72)(9. 6) in terms of a and b is equal to (a) (2a+3b-1)/(5a+b-2) (b) (5a+b-1)/(3a+2b-2) (c) (3a+b-2)/(2a+3b-1) (d) (2a+5b-2)/(3a+b-1)

If (log)_(10)2=a ,(log)_(10)3=bt h e n(log)_(0. 72)(9. 6) in terms of a and b is equal to (a) (2a+3b-1)/(5a+b-2) (b) (5a+b-1)/(3a+2b-2) (c) (3a+b-2)/(2a+3b-1) (d) (2a+5b-2)/(3a+b-1)