How do I show the identity of cos(6x) = 2cos^2(3x)-1
1 answer:
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See, please, the solution for the task number 2.
Nia answered correct answers = 80% of the 40 questions
When we remove % sign from a number, we divide that number by 100
= of 40
=
Cancelling the two zeroes from numerator and denominator,
=
= 32.
Total correct answers answered by Nia = 32