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18 votes
Tan(x) *cos(x)*cos(x)= ( the answer should have sin only ) ASAP

User Fritzie
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1 Answer

3 votes

This doesn't make any sense because you didn't give a value to cos like you did to sin.

Let me guess the actual question is tan(x)*cos(x) write this in term of sin.

Now from trigonometry identities, we know that tan(x)=sin(x)/cos(x)

So the expression can be written as sin(x)/cos(x)*cos(x)

which results in sin(x) as the answer, if I guessed the question wrong, sorry and please tell me in the comments what the correct question is, because this question doesn't seem complete :)

User Gabor Juhasz
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6.2k points