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# Trig Functions Watch

1. The trig functions are confusing me and I can't use them in a question. Would anyone be able to work one of these 2 questions through to help me understand.
For -180°≤θ≤180°, solve (2sinθ+1)(cosθ+1)=0
For -180°≤θ≤180°, solve tanθ(tanθ-1)=0
Thanks.
2. (Original post by Alexakd)
The trig functions are confusing me and I can't use them in a question. Would anyone be able to work one of these 2 questions through to help me understand.
For -180°≤θ≤180°, solve (2sinθ+1)(cosθ+1)
For -180°≤θ≤180°, solve tanθ(tanθ-1)
Thanks.
they aren't actually equations... so cannot solve ?
3. (Original post by Alexakd)
The trig functions are confusing me and I can't use them in a question. Would anyone be able to work one of these 2 questions through to help me understand.
For -180°≤θ≤180°, solve (2sinθ+1)(cosθ+1)
For -180°≤θ≤180°, solve tanθ(tanθ-1)
Thanks.
i assume both of those expressions are equal to 0. if so, set each factor equal to 0 and draw the sin/cos/tan waves.
4. (Original post by the bear)
they aren't actually equations... so cannot solve ?
oops, I forgot to write =0.
5. (Original post by Raees_Sharif)
i assume both of those expressions are equal to 0. if so, set each factor equal to 0 and draw the sin/cos/tan waves.
yes they are =0. and thank you

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