- #1
Alexx1
- 86
- 0
2Arctan(1/3) + arctan(1/7) = π/4
I try to solve it like this:
= sin(2arctan(1/3)) + sin(arctan(1/7) = sin(π/4)
But this isn't correct
What have I done wrong?
I try to solve it like this:
= sin(2arctan(1/3)) + sin(arctan(1/7) = sin(π/4)
But this isn't correct
What have I done wrong?