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If alpha and beta are the zeros of the polynomial 2x²-5x+7, then find the value of alpha-¹+ beta-¹

Posted by Sandhya Vishwakarma 1 week, 4 days ago

CBSE > Class 10 > Mathematics

1 answers

Divyanshu Sharma 1 week, 1 day ago

alpha + beta = -b/a = 5/2 value of alpha into beta = c/a = 7/2 Find :- 1/alpha + 1/beta taking lcm alpha beta so, alpha + beta / alpha into beta 5/2 /7/2 10/14 simplest form is 5/7 is the balue of 1/alpha + 1/beta Answer :- 5/7

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