442.
A.
one- to- one
B.
onto
C.
a relation
D.
a series
Correct answer is B
The function y=g(x) is one- to- one but z=h(y) is not one- to- one but onto.
∴
443.
From the diagram above, h[g(3)] is
A.
S
B.
\beta
C.
{s, \beta}
D.
{s, w, \beta}
Correct answer is B
From the diagram, g(3) = s; h(s) = \beta.
444.
From the diagram above, which of the following represents the vector V in component form?
A.
-5\sqrt{3} i + 5j
B.
3i + 3\sqrt{3}j
C.
i + 2\sqrt{3}j
D.
-2\sqrt{3}i - j
Correct answer is B
V = V\cos \theta i + V\sin \theta j
6N = 6 \cos 60 i + 6 \sin 60 j
= 3i + 3\sqrt{3} j
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