The Total solution for NCERT class 6-12
cos4 2x
Answer - 11 : -
Answer - 12 : -
Answer - 13 : -
Answer - 14 : -
Answer - 15 : -
tan4x
Answer - 16 : -
From equation (1), we obtain
Answer - 17 : -
Answer - 18 : -
Answer - 19 : -
sin−1 (cos x)
Answer - 20 : -
It is known that,
Substituting in equation(1), we obtain