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Q. a(b - c)x^2 + b(c - a)x + c(a - b) = 0 has equal roots then b = ? Ans: Condition that a quadratic equation ax² + bx + c = 0 has equal roots is: Its discriminant, b² - 4ac = 0 A
explanation
i need help with exponents and how to add them
Consider the regression model Y i = a + bX i + u i , where the X i are non-stochastic and the u i are independently and identically distributed with E[u i ] = 0 and va
i need help with classifing quadrilaterals
40.783-75
Expand (1- 1/2x -x^2)^9
kim had 1/2 an orange. she gave Linda 1/4 of this. What fraction of the whole orange did Linda get?
Scalar Multiplication - Vector arithmetic Another arithmetic operation that we wish to look at is scalar multiplication. Specified the vector a → = (a 1 , a 2 , a 3 ) and any
3x+3/x2 -6x+5
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