1+cot^2x-cos^2x-cos^2xcot^2x Can Anyone simplify this problem step by step?
Follow Math Help Forum on Facebook and Google+
Thanks. My precalc book says the answer is 1, but that didnt make sense to me.
Does this make sense that the answer is 1?
Does anyone know what the right answer is? Is it 1 or above? Can you explain -- Thanks
Originally Posted by mat1 1+cot^2x-cos^2x-cos^2xcot^2x Can Anyone simplify this problem step by step? your book is correct. $\displaystyle 1 + \cot^2{x} - \cos^2{x} - \cos^2{x} \cdot \cot^2{x} =$ $\displaystyle 1 + \cot^2{x} - \cos^2{x} - \cos^2{x}(\csc^2{x} - 1) =$ $\displaystyle 1 + \cot^2{x} - \cos^2{x} - \cot^2{x} + \cos^2{x} = $ $\displaystyle 1$
Thank you very much for the help and answers
View Tag Cloud