Recent content by fazal

A force F of 6 units acts in the direction 30 degrees west of north. An object is constrained to move north-westerly, that is, 45 degrees west of north. (a) Sketch the force vector roughly to scale on a set of axes that has the positive y axis pointing north, and write F using exact values...

Homework Statement let f(x)=(x+1)^2(x-2) a)Find the max and Min values of f(x) b)Find the inflection point of concavity Homework Equations using defferentiation The Attempt at a Solution for part a) differentiate (x+1)^2(x-2) we get ans=3(x-1)(x+1) Plse check for me? than...

so c) X=(C+B)A^-1B^-1 d)X=B^-1C^-1D plse check thks

Given that A^-1 , B^-1 and C^-1 exist, solve the following equations for X: a)AX=C b)AXB=C c)BXA=C+B d)XABC=D plse help...

matrix K = 1 3 0 2 1 2 and Matrix L= 1 3 -1 2 i3 the 3x3 identity matrix, & O the 2x2 zero matrix, find the following where possible. 1)KL 2)LK c)KI d)O + M plse assist

is the answer for part b) -9.656<=x<=4.159 ??

iam sorry new to the forum...

Homework Statement a)The function f is defined by y=f(x) = 3ln 4x 0.01<=x<=1 solve for x in terms of y and hence find the formula for the inverse function of f^-1 b)Write the domain of f^-1 plse help check my answers below... Homework Equations as above The Attempt at a...

i can't seem to figure out the domain...plse assist b)Write down the domain of f^-1

yes the range is from 0.01<=x<=1 therefore i plug into the f^-1 and got 0.2508<=x<=0.3489

is the domain from 0.2508<=x<=0.3489 by using 1/4 * e^(0.01/3) and 1/4 * e^(1/3) plse assist to check

plse assist is this right?

for a) is it this way: x=1/4e^(y/3)

plse assist to check

for A) take the dot product of the two normal vectors. if its zero then they're perpendicular ? take the cross product of the two normal vectors. if its zero then they're parallel ? For them to be the same they'd have to be linear multiples of each other? how? B)Parallel to the plane...