Answer:
the sum of 12 and the product of 2 and 4 in algebratic expression: 12+S4
First of all, you can use
and the equation becomes
Now, from the known identity
we can half all the angles and we get
So, the equation has become
So, everything comes down to solve
The associated equation
has roots
So, we want one of the following
Solve for the associated angles and you're done
Answer:
7/8
Step-by-step explanation:
Use the Pythagorean Identity
Plug in
for cos x.
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