Answer:
0.8660
Step-by-step explanation:
cosine theta = -1/2
theta = cosinearctan(-0.5)
theta = 120
sine4theta = sine 4(120)
= sine480
= 0.8660
I only see one question.
The answer is the root 4 has the multiplicity of 2.
Angle GQK=90
GQK=GQL+LQK
90=3n+(4n-15)
n=15
Therefore angle LQK=4(15)-15
=45
Answer:
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If the income is $2600 the purchasing power will be $2400 .this is shown on the diagram above
