Recent content by styxrihocc

Sorry but typing in latex takes too long so i just cropped the pics straight from my doc file from this formula in my textbook: Anyway seeing as my answer is wrong how should i go about this problem?

Homework Statement Hey I just need someone to check my work to make sure I did it right, thanks.

Thanks.

Homework Statement Differentiate x^(cosx) = y ^(sinx) with respect to x Homework Equations The Attempt at a Solution I tried using natural logs but I am not sure if its correct, if it's wrong please point me to the right direction, thanks x^(cosx) = y^(sinx) ln x^(cosx) = ln y ^(sinx) ln x...

Homework Statement Find the vector equation of a line that passes through the point (1,3,4) and is parallel to a line that passes through point (5,1,2) Homework Equations The Attempt at a Solution <1,3,4> + t<5,1,2> <1,3,4> + <5t,t,2t> <1+5t,3+t,4+2t> Is my answer correct? if not please...

damn now i feel really stupid having asked the question because that makes perfect sense. thanks a lot man

27+9+3+42 so 81 total...what now??

√3(√3^6+√3^4+√3^2+42) so how do i find κ?

I'm sorry i don't get it, how is that supposed to solve the problem? would be great if you could explain in detail

Given that (√3)^7 + (√3)^5 + (√3)^3 + 42(√3) may be expressed as 3^κ, find the value of κ Now I know that (√3)^ 7 is the same as 3^3.5 so I have 3.5, 2.5 and 1.5 but i have no idea how to calculate 42 (√3). Please help :(