Question

Solve 2sin2A = 1 for 0º≤A≤360º

Answer 1

start by dividing by 2. That way you get
\[\sin 2A=\frac{ 1 }{ 2 }\]
Now, which radians give you sin=1/2?

Answer 2

2sin^2A = 1, the sin^2 is what im confused by.

Answer 3

\[\sin ^{2}??\]

Answer 4

yesum.

Answer 5

is the original equation squared?

Answer 6

2sin^2A = 1, that's the original equation.

Answer 7

oohhh ok. lemme rewrite that

Answer 8

it would be: \[\sin ^{2}A=\frac{ 1 }{ 2 }\]

Answer 9

ok, how I learned it, solve for A as if it were not squared. Simply, ignore the squared until the end. Now, what gives you what value (in radians? gives you 1/2?

Answer 10

that doesn't fit into the answers is the only problem

Answer 11

wait! I just saw my mistake.