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# trig watch

1. sin(2t+20)-3cos(2t+20)=0 , any help recieved would be very helpful, just to start off then i should be able to work through it.
2. sin/cos = tan

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3. (Original post by zetamcfc)
sin(2t+20)-3cos(2t+20)=0 , any help recieved would be very helpful, just to start off then i should be able to work through it.
You might wanna use substitution method make 2t+20=x. Solve the equation and see where you go with that.
4. (Original post by Merdan)
You might wanna use substitution method make 2t+20=x. Solve the equation and see where you go with that.
How would that help?
5. Already done after the first hint, ty guys
6. (Original post by Duck'sBackBRO)
You still need help with this Mr Zetamcfc?
Nope, ty for the offer.

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