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2cos2+cos2(2)−2cos2cos2=1​
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2cos2+cos2(2)−2cos2cos2=1​

User Parth Adroja
by
7.9k points

1 Answer

1 vote
The left side
1.99999925
1.99999925
does not equal to the right side
1
1
, which means that the given statement is false.
User Shimon Doodkin
by
8.4k points
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