My Math Forum Composition of functions?

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 April 22nd, 2014, 10:32 AM #1 Newbie   Joined: Apr 2014 From: Jersey Posts: 2 Thanks: 0 Composition of functions? n[m(t)] if n(x) = 3^x and m(t) = SQRT(t) + 1 A SQRT(3x) + 1 B3[SQRT(t)] CSQRT(t) + 3 D3[SQRT(t) + 1] E 3[SQRT(t)] + 3 F SQRT(3x) + 3 m[n(x)] if n(x) = 3^x and m(t) = SQRT(t) + 1 A 3[SQRT(t) + 1] B3[SQRT(t)] SQRT(t) + 3 CSQRT(t) + 3 DSQRT(3x) + 1 E SQRT(3x) + 3 F 3[SQRT(t)] + 3 please help me.
 April 22nd, 2014, 10:36 AM #2 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms What have you tried? Where are you stuck?
 April 24th, 2014, 11:08 PM #3 Newbie   Joined: Apr 2014 From: USA Posts: 8 Thanks: 2 Answer is D and A Respectively
 April 25th, 2014, 11:12 AM #4 Newbie   Joined: Apr 2014 From: Albania Posts: 8 Thanks: 2 n[m(t)] = 3^[sqrt(t)] + 3 ( alternative D) m[n(x)] = sqrt(3^x) +1 (alternative D)

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