The Total solution for NCERT class 6-12
Answer - 21 : -
Equating the coefficientsof x and constant term on both sides, we obtain
Substituting (2) and (3)in (1), we obtain
Answer - 22 : -
Equating the coefficientsof x and constant term, we obtain
Using equations (2) and(3) in (1), we obtain
A. x tan−1 (x +1) + C
B. tan−1 (x + 1) + C
C. (x +1) tan−1 x + C
D. tan−1 x +C
Answer - 23 : -
Hence, the correct answeris B.
Answer - 24 : -