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Mathematics
Mathematics
Problem
For an acute angle
A
A
A
,
sin
A
=
3
5
\sin A = \dfrac{3}{5}
sin
A
=
5
3
. (i) Find
cos
A
\cos A
cos
A
. (ii) Determine
tan
A
\tan A
tan
A
and
sec
A
\sec A
sec
A
. (iii) Evaluate
sin
A
+
cos
A
\sin A + \cos A
sin
A
+
cos
A
.
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