Recent content by evelynn

Wow! It makes so much more sense now that you've mentioned detA=detA^T to me! Thank you so much!

Homework Statement If det\left[ \begin {array}{ccc} a&1&d\\ \noalign{\medskip} b&1&e\\ \noalign{\medskip} c&1&f \end {array} \right]=-4 and det\left[ \begin {array}{ccc} a&1&d\\ \noalign{\medskip} b&2&e\\ \noalign{\medskip} c&3&f \end {array} \right]=-1 , then...

Thank you very much for your help.

Thank you for the the explanation, but I have another question to ask. What happens to the leaves of a charged electroscope if another charged object is held near the knob? If the electroscope is charged positively and a negatively charged object is held near the plate, then I think the leaves...

[SOLVED] Question regarding electroscopes I was just wondering if the leaves at the bottom of a grounded electroscope will repel when induced by a charged object, regardless of the type of charge. I was told that if a positively charged rod was placed near a neutral electroscope, the leaves...