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Answers to difficult derivatives. a.. 35 (5x+23) 6 b.-20 (3-4x) 4 c.-24x (1-4 x 2 ) 2 d.-3 2(3x+2) 2 e.-3 4(3x+2) 5 f.. 6(5x+6) (5 x 2 +12x+1) 2 g.-5(2x+3) ( x 2 +3x+4) 6 h.. 6 x+6 2 9 x 3 -2 4 (27 x 3 +135 x 2 -1) i.. x 7 x+1 3 x 3 -x+1 6 (33 x 4 +29 x 3 -19 x 2 -3x+8) j.-25 x 2 -42x+32 ( x 2 +3x+10) 4 k.. - x 4 6x - 1 4 (24 x 3 - 209 x 2 - 470x+40) ( x 2 - 5x - 8) 4 ................
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