Whats the fraction.....!
1 answer:
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Answer:
1 is Answer.
Step-by-step explanation
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As we know that ω²+ω+1=0
Thus putting in above equation, we get
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Rearranging and simplifying:
=
=
=
= 1 Answer
We are given that the angle a is the right angle. So let us work from this.
ab = 12 (the vertical side of the triangle)
bc = 13 (which if drawn can be clearly observed to be the hypotenuse) = the side opposite to angle a
ca = 5 (the horizontal side of the triangle)
Since we are to find for the cosine ratio of angle c or angle θ, therefore:
cos θ = adjacent side / hypotenuse
cos θ = ca / bc
cos θ = 5 / 13
Check out the attached image below for the illustration of the triangle.
