1) Factorize the LHS of equation
or
=> or
but cannot be -2.
so
or
or x = 60 degree Answer
b)
=>
Proceed in above method. Factorize and calculate.
I'm about done all my homework for this unit, but I seem to be stuck on my last 2 questions....any help would really be appreciated.
Solve each equation:
a) 2cos^2x + 3cosx -2 = 0
and
b) sinx = cos2x
My lesson book is not very good on explaining the process of solving for x and provided very few examples....which is why I'm stuck. I just want to hand in my homework tonight and worry about understanding it when I can actually ask the teacher for help (which won't be until Monday)
Thank you for any help you can give me!