Recent content by yoohoo

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    Indicate whether sech(x) is invertible for [0, infinity) and explain why

    Homework Statement Indicate whether sech(x) is invertible for [0, infinity) and explain why.The Attempt at a Solution Sooo... I know that: sech(x) = 2 / ( ex + e-x ) I know that to get the inverse equation I'd need to swap the y and the x... but I'm trying to show whether it's invertible...
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    Statics Equilibrium Problem - 3 Force body in equilibrium

    Thanks both of you for your help... I guess I should have more faith! Whenever I think a textbooks wrong, I think back to one of my first year profs telling the class that usually when a student gets a different answer than the textbook, it's the student who's wrong --not the textbook haha.
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    Statics Equilibrium Problem - 3 Force body in equilibrium

    Hmmm... that's what I got... however, the answer in the textbook and according to other sources is 150 N [down] for A and 167.7 N [W 63.4 N] for C.
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    Statics Equilibrium Problem - 3 Force body in equilibrium

    Statics Equilibrium Problem -- 3 Force body in equilibrium Homework Statement Q: A T-shaped bracket supports a 150-N load as shown. Determine the reactions at A and C when (a) alpha=90o, (b) alpha =45o A: (a)A=150N going down, C=167.7N,63.4degrees (b)A= 194.5N going down; C=253N, 77.9...