What is sin^2 3x+cos^2 3x?
The following solution is suggested to handle the subject “What is sin^2 3x+cos^2 3x?“. Let’s keep an eye on the content below!
Question “What is sin^2 3x+cos^2 3x?”
What is sin^2 3x+cos^2 3x?
Answer
Answer 1
Please refer to the following.
Explanation:
Let’s try it: using values
But, before that as
And
=
We now have proof
Hence
=
=
=
=
=
Answer 2
Start with the trig identity
This identity is variable x. Therefore, we can substitute x with another variable X = 3. Therefore:
Conclusion
Above is the solution for “What is sin^2 3x+cos^2 3x?“. We hope that you find a good answer and gain the knowledge about this topic of trigonometry.