Let R be the set of real numbers and the mapping f : R → R and g : R → R be defined by f ( x ) = 5 − x 2 and g ( x ) = 3 x − 4 , then the value of ( f ∘ g ) ( − 1 ) is

Question

Let R be the set of real numbers and the mapping f : R → R and g : R → R be defined by f ( x ) = 5 − x 2 and g ( x ) = 3 x − 4 , then the value of ( f ∘ g ) ( − 1 ) is, -44, -54, -32, -64

MARKS App · Accepted Answer

Hints: f ( g ( − 1 )) = f ( − 3 − 4 ) = f ( − 7 ) = 5 − 49 = − 44

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