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# Help on trig question! Watch

1. I'm stuck on a question in my C4 textbook and would really appreaciate some help.
Given that tan26.6=0.5, solve tanx=2 without using your calculator. Give x to 1 decimal place where 0<x>90
I know that 4tan26.6=2 not sure what else to do, this is just after they introduced the reciprocal trig functions, compound angle formula and the double angle formula if that helps.
2. (Original post by Jazzhopkid)
I'm stuck on a question in my C4 textbook and would really appreaciate some help.
Given that tan26.6=0.5, solve tanx=2 without using your calculator. Give x to 1 decimal place where 0<x>90
I know that 4tan26.6=2 not sure what else to do, this is just after they introduced the reciprocal trig functions, compound angle formula and the double angle formula if that helps.
Draw yourself a right angled triangle with an angle of 26.6 degrees in it. Make the opposite side 1 unit and the adjacent side 2 units, so it has a tangent of 0.5. What angle do you think might have a tangent of 2?
3. D'oh! Wow I feel stupid, thanks for the tip.

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