Answer Happy

Need work and explanations please
6. Find these integrals using a substitution (show all work): (In x) 10 b dr (c) sin dx 1 + cos22 2 (a) [(4x+1)=3/5 dx (a) / 4#" , du (b) / (e) / 10 ) / ✓ (8) $* 4.13 + 1 dc 24+2 +1 10. V x2 + 4 da + dr