Recent content by pokgai

Homework Statement An electric circuit consists of a resistor with a resistance of 12 ohms, a capacitor with a capacitance of 0:1 farads and an inductor with an inductance of 2 henry connected in series with a voltage source of 52 cos t volts. Initially the charge on the capacitor is 3...

Homework Statement Express the function cosh(6x) in terms of powers of cosh(x) Homework Equations The Attempt at a Solution Okay the problem booklet also asks me to do the opposite. Express cosh(x)^6 as mutiples of cosh(x). I can do that fine, I just simply write it out as [1/2(e^x + e^-x)]^6...

[b]1. prove whether x-y-3z=0 is a subspace of R^3 or not Homework Equations for proofs 1. set must not be empty 2. set is closed under vector addition 3. set is closed under scalar multiplication The Attempt at a Solution Not sure if this is correct, but what I did was find the...