Can Grade 12 Trig Questions Be Too Challenging?

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30 replies · 12K views


tahayassen said:

Homework Statement



http://img831.imageshack.us/img831/8389/daumequation13263429629.png

Homework Equations



No equations are required.

The Attempt at a Solution



http://img845.imageshack.us/img845/9519/34851996.png


http://img692.imageshack.us/img692/1841/24101089m.png


http://img694.imageshack.us/img694/6687/41337501.png


http://img9.imageshack.us/img9/9702/91594220.png

If sin(x)cos(x)=1, then x is not a real number. So are you looking for real numbers? If you are not, then you can use exponential forms of sin and cos.
 
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