Solving Trig Equations.

[math.]

The problem: sin 2a = 1, 0<=a<2pi I'm confused as to what the two before the a means... Its not sin²a, but two before the a itself.

 

[Deleted member 4993]

The problem: sin 2a = 1, 0<=a<2pi I'm confused as to what the two before the a means... Its not sin²a, but two before the a itself.

It is double angle (2*a)

Thus if 2a = 60° → a = 30°

 

[math.]

Ok, thanks.