Based on the right angle triangle and the given parameters, cos K = 5/13
<h3>Trigonometric ratios</h3>
- sin = opposite / hypotenuse
- cos = adjacent / hypotenuse
- Tan = opposite / adjacent
Given parameters:
- Hypotenuse = 13
- Adjacent = 5
- Opposite = 12
Therefore,
cos K = adjacent / hypotenuse
cos K = 5/13
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5(5+x) = 6(6+4)
25+5x = 60
5x = 35
x = 7
-----------------
3(3+5) = 4(4+x)
24 = 16 + 4x
4x = 24-16
4x = 8
x = 2
Answer:
The answer is the top option choice "both i and ii."
Step-by-step explanation:
Hopes this helps.
For
between
and
, we have
is continuous over its domain, so the intermediate value theorem tells us that

is true for
.
For all
, we take into account that
is
-periodic, so the above inequality can be expanded to

where
is any integer. Equivalently,

To get the corresponding solution set for

simply replace
with
:

