Exercise 7.5
Q3.
Solution:
3x -1 = A(x-2)(x-3) + B(x-1)(x-3) + C(x-1)(x-2) ................... (i)
Substituting x =1, 2, and 3 respectively in equation (i), we obtain A =1, B = -5 and C= 4.
Q4.
Solution:
Q5.
Solution:
2x = A(x + 2) + B(x +1)
Substituting x = −1 and −2 in equation (1), we obtain
A = −2 and B = 4