In need of trig help..love ya!
I couldnt figure out some of my trig problems...so Im having a bit of trouble wasting time on these problems. Any help would be great. Thanks
Evaluate the expressions:
cos(arcsin 1/4) couldnt figure out what arcsin 1/4 was...maybe 22.5 degrees?
cos(arcsin 3/5 +arccos sqrt3/2)
Use a calculator to find the value. Give answers as real numbers.
Write the following as an algebraic expression in u, u>0
sin 2theta =-1/2
Solve the equation for the interval [0,2pi)
cos^2x + 2cos x+1-0
Solve the equation for solutions in the interval [0, 360). Round to the nearest degree.
sin 2theta =cos theta
sin 2theta= -1/2
sqrt3 sec2theta =2
Solve the equation for x
y=8 cos 3x
Solve the equation for exact solutions.
arcsin(y-pi/6) = pi/3
arctanx = arcsin 7/25
Solve the equation.
arcsin 2x +2 arccos x=pi