Answer:
The complement of
is
.
Step-by-step explanation:
<u>Method 1</u>
From the isosceles right triangle; See diagram in attachment.



Also;



Hence;

<u>Method 2</u>
because the complement of
is still
.
Complementary angles add to
.
In general if we have an angle
, then its complement is
.
There is a relationship between the sine of an angle,
and the cosine of its complement,(90-\theta)\degree[/tex].
The relationship is that,
.
If
, then
.
.