If then (1)
Offcourse there're infinite solutions for responding to that, but there's given that
Substitute (1) in
But you can't call it an equation because is not equated to anything ... ?
Hi. I have a problem solving this trigonometrical equation:
6sin(pi+x)+cos(pi/2+x) if cosx=0.6 and 0<x<pi/2
If you can, please ask questions so that I try to answer them myself and solve the equation step by step. I'm not from an English speaking country, but I hope we have similar terms and you understand me.
Do I reduce first? I get -7sinx, but I'm not sure how to use then cosx=0.6, if I reduce -7sinx back to cos I get -7cos(3pi/2+x) here also I don't know how to use cosx=0.6....