Find all real solutions of the given equation, express your answerin radian measure.

1)

Show transcribed image text Find all real solutions of the given equation, express your answerin radian measure. 2sin2 x - cos(x) = 1
1)

Thanks for writing a question! Please sign up for an Answerson account so we can let you know when it's answered.

Don't have an account? Sign up

Already have an account? Log in

Lost your password? Please enter your username and email address. You will receive a link to create a new password via email.

Find all real solutions of the given equation, express your answerin radian measure.

1)

Show transcribed image text Find all real solutions of the given equation, express your answerin radian measure. 2sin2 x - cos(x) = 1
1)

## Answers ( 3 )

from this equation you can derive;

plug this into the main equation than you can get ;

then let us say ;

by pluging this into the equation;

from this you can find;

and then plug cos x for a you can reach the known angles 5pi/6 and2pi