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If it is given that 9th …

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If it is given that 9th term of an AP is 0 than prove that 29th term is double of 19th term? CAN WE DO LIKE THIS: a9=a+8d a+8d=0 a=-8d a29=a+28d a29=-8d+28d a29=20d............eq 1 a19=a+18d a19=-8d+18d a19=10d.............eq 2 Then, a29=2(a19) 20d=2(10d) [from eq 1 and eq 2] 20d=20d 0=0 Hence 29th term is double of 19th term

Posted by Rohan Patel 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Happy With Single ? 6 years, 2 months ago

How A29=2(a19)?????

0Thank You

Happy With Single ? 6 years, 2 months ago

Half is correct but after eq2 there is some mistake

0Thank You

Happy With Single ? 6 years, 2 months ago

0Thank You

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CBSE > Class 10 > Mathematics