CBSE Class 10 Answered
2 x square - 2 root 2 X + 1 is equal to 0
Asked by goyelgurav | 18 Dec, 2023, 11:23: PM
Expert Answer
Given quadratic equation is 2x2 - ( 2√2 ) x +1 = 0
If we compare the given quadratic equation with standard form of a x2 + b x + c = 0 , then we get
a = 2 , b = -2√2 and c = 1
b2 - ( 4 a c ) = ( - 2 √2 )2 - ( 4 × 2 × 1 ) = 0
If ( b2 - ( 4 a c ) ) = 0 , then roots are real and equal .
Equal roots of given quadratic equation = -b/(2a) = 2√2 / 4 = 1/√2
Answered by Thiyagarajan K | 19 Dec, 2023, 10:41: AM
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