Solve the quadratic equation of x (sin(2a)).x^{2} - 2.x.(sin(a)+cos(a)) +2 =0 Kindly explain your answer.
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Rewrite as and divide everything by 2: Apparently this factors to . Solve for x.
Last edited by richard1234; Aug 6th 2012 at 05:46 PM.
Thanks for it Richard. I appreciate it but I still don't get it. Can you explain it further?
What step don't you get?
In the substitution.
Trig identity, for all .
Thanks!
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