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Q.

Let f be two real valued functions with domain A={2,0,2}. If f={(2,4),(0,6),(2,8)} and g=(2,1),(0,3),(2,5), then (2f)(3g)+(3g)(2f)(0)=

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a

1312

b

512

c

2512

d

112

answer is B.

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Detailed Solution

A={2,0,2}f={(2,4),(0,6),(2,8)},g={(2,1),(0,3),(2,5)}

(2f)(3g)+(3g)(2f)(0)

f(0)=6,g(0)=3

2×63×3+3×32×6=43+34=2512

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