3. Find the indefinite integral of the following function and check the result by differentiation. 3 S sinbudu 3t dt 2+ 5) (@1sinsnods A) 3 + C 8 (12 + 5) a s ( t s us " du B) -3 .+ C 8 (12 +/5)0 C) +3 .+ C 8 (17 + 5) Sxev(3 +x 7 ) dx -3 D) - + C 8 ( 12 + 5 ) 'Sus ( 3 + 4 5 )- du E) -3 8 ( 1 2 + 5 ) # 4. Find the indefinite integral of the following function and check the result by differentiation. 52/ 4 du Vu' + 4 A ) Vus + 4 + C B) 1 Ju 4 + 4 + C 2 C) 2 Vu5 + 4 + C D) 2 Vu* + 4 + C E) I Jus + 4 + C 5. solve The differential equations.. 165+9 2 ) 19 - xx d's ( 85 + 95 + 3)2