Answer:
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Step-by-step explanation:
Required
Show that:
To make the proof easier, I've added a screenshot of the triangle.
We make use of alternate angles to complete the proof.
In the attached triangle, the two angles beside 
are alternate to 
and 
i.e.
Using angle on a straight line theorem, we have:
Substitute values for (1) and (2)
Rewrite as:
<em></em><em> -- proved</em>
Answer:
Θ = 50°
Step-by-step explanation:
Using the cofunction identity
cosx = sin(90 - x)
Given
cos40° = sin(90 - 40)° = sin50° ⇒ Θ = 50°
3/4 - 3/5 first we need to change it to the same denominator so it’ll be
15/20- 12/20 which equals 3/20
Answer:
-5^11
Step-by-step explanation:
Answer:
8
_
12 I think
that's it it you can cross multiple it will be 7/10
