Question 4
2 4 1x x+ + 5. 21 4 x x− − 6. 2 4 5x x+ − 7. 21 3 x x+ − 8. 2 3x x+ 9. 1 9 x+ Choose the correct answer in Exercises 10 to 1 1. 10. 21 x dx+∫ is equal to (A) ( ) 2 211 log 1 C2 2 x x x x+ + + + + (B) / 2 22 (1 ) C3 x+ + (C) 2 22 (1 ) C3 x x + + (D) 2 2 2 2 11 log 1 C2 2 x x x x x+ + + + + 11. 2 8 7x x dx− +∫ is equal to (A) 2 21 ( 4) 8 7 9log 4 8 7 C2 x x x x x x− − + + − + − + + (B) 2 21 ( 4) 8 7 9log 4 8 7 C2 x x x x x x+ − + + + + − + + (C) 2 21 ( 4) 8 7 3 2 log 4 8 7 C2 x x x x x x− − + − − + − + + (D) 2 21 9( 4) 8 7 log 4 8 7 C2 2x x x x x x− − + − − + − + +
SOLUTION
→→→→