solve the equation sin^-1(4x^4+x^2)=1/6pi
need help asap. mark scheme is rubbish Watch
- Thread Starter
- 04-10-2017 11:38
- 04-10-2017 12:57
What have you tried and/or what don't you understand in the marking scheme?
- 04-10-2017 16:52
what don't you understand from the mark scheme