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Mathematics 10 Online
OpenStudy (anonymous):

Is it identity or not? If so how? sin x /1-cos x +sin x/1+cos x=2csc x

OpenStudy (anonymous):

well, add the fractions, and multiply thru by sin .... is my thought

OpenStudy (anonymous):

is: sin(1-cosx) + sin(1+cosx) = 2, for all x?

OpenStudy (anonymous):

factor the sin .. sin (1-cos + 1 + cos) = 2 2 sin = 2 ... if i see it right ... does that always work for any x?

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