Solve the math problem
2 answers:
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Answer:
where
Step-by-step explanation:
given equation is:
since no range is provided we can solve for all values of :
for one cycle of cos
for all cycles of cos
we should also include negative values.
we can divide each value by 2, to get the solutions for instead of
Answer:
This is the solution of the equation .
In its most general form we can write all solutions of the equation in terms of
where
or n is an integer.
We can write <em>S</em> as
and expand it as
The first sum is geometric, nothing tricky:
For the second sum, you can use the same method employed in another question of yours (24494877) to find
So this sum comes out to