Suppose that cot(thetha)=c and 0<thetha<π/2. What does cos(thetha) equal in terms of c? (Use symbolic notation and fractions where needed.)   Hi this is a problem that I had for my rutgers homework online and I got sin(thetha)c, but I guess it isnt the right answer. So I was wondering what you guys could get? Thank you!

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.