?

I have no idea how to do this problem. I'd prefer understanding rather than an answer.

VectorA - VectorB = 1.9VectorC

VectorA + VectorB = 5.8VectorC

VectorC = 5.8i + 4.7j

Find the x and y components of Vectors A and B.

Sorry for notation, typed on my phone.

I could use some help on this problem as I've done it 5 times and cannot get the answer.

f(x) = 1/(sqrt(7x))

Compute Lim h->0 of [f(5+h)-f(5)]/[h]

My current best answer is [2sqrt(35)]/175 but it said it was incorrect.

Thank you!

lim x->0- of 2x(sqrt(1 + (4/(x^2)))

Exam in a few minutes could use help on this practice problem!

Simplify the expression sin(2arctan(x^2))

Simplify the expression sin(2arctan(x^2)).

I've been working through the following problem, know the answer but cannot come to do it myself.

Solve for x in [0, π]: 2 cos x > sec x

I could use the steps since I have the answer.

Thanks!

I've completed my calculus homework except one problem has me stumped.

Evaluate Lim x->0 of (2^(2x) - 1) / (2^(x) - 1)

I looked up the answer and it's 2, but I could use some guidance.

Thanks

Borderlands 2 looks really bad but only on my television. I have a Vizio 40 inch 1080p HD TV with an HDMI cable hooked up and my PS3 set to 1080p. However my roommate also has a 40 inch television and it looks absolutely amazing... Same thing with Call of Duty. Blu Ray movies look great, but games on the television just look awful. Does anyone know how I can fix this or what is the problem? I've tried unchecking 720p and 1080i and then it downscales it to 420p which is even worse.... PLEASE HELP!!!

Why does Borderlands 2 look so bad on my PS3? I have a 42 inch 1080p TV I'm trying to play it on as it looks horrible. When I play in my 27 inch 1080p in my dorm in college it looks so much better. I've messed with settings unchecking 780p and 1080i and it just scales down to 480p. Not sure what the problem is.