Asked by Anonymous
2cos(x)-3tan(x)=3sec(x)
Answers
Answered by
bobpursley
tan= sin/cos
Let C mean cosine, S mean sine(x)
multiply by C
2C^2-3S=3
2(1-S^2)-3S=3
2S^2+3S+1=0
(2S+1)(S+1)=0
so you have the solution.
Let C mean cosine, S mean sine(x)
multiply by C
2C^2-3S=3
2(1-S^2)-3S=3
2S^2+3S+1=0
(2S+1)(S+1)=0
so you have the solution.
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