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Which pair of functions have the same domain? A. f(x)= cos x and g(x)= tan x B. g(x)= tan x and f(x)= sec x C. f(x)= sin x and f(x)= sec x D. g(x)= tan x and f(x)= cot x
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1 vote
Which pair of functions have the same domain?

A. f(x)= cos x and g(x)= tan x
B. g(x)= tan x and f(x)= sec x
C. f(x)= sin x and f(x)= sec x
D. g(x)= tan x and f(x)= cot x

User Carmen Sandoval
by
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1 Answer

5 votes
Answer is B. g(90)=tan90=undefined and f(90)=sec(90)=undefined
User Hdoghmen
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