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If for an A.P.,d=11 then t₁₇-t₁₅= ….....2 pointsa) 2b) 22c)33d) 13 |
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Answer» Answer: B)22 Step-by-step explanation: Given that, Common difference=d=11 first term=a=a number of the term=N T n
=a+(n−1)d T 17
=a+(17−1)11
=a+(16)11 =a+176 T n
=a+(n−1)d T 15
=a+(15−1)11
=a+(14)11 =a+154 then, T 17
−T 15
=(a+176)−(a+154) =a+176−a−154 =22 Thus, We get A.P=22 |
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