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Basic of Logarithms
easy
જો ${{3x + 4} \over {{x^2} - 3x + 2}} = {A \over {x - 2}} - {B \over {x - 1}}$,તો $(A,\,B) = $
A
$(7, 10)$
B
$(10, 7)$
C
$(10, -7)$
D
$(- 10, 7)$
Solution
(b) $3x + 4 = A(x – 1) – B(x – 2)$
$ \Rightarrow $ $3=A-B,$ $4 = – A + 2B$
$ \Rightarrow $ $A = 10,\,\,\,B = 7$
$\therefore (A,\,B) = (10,\,7)$.
Standard 11
Mathematics