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Find all real solutions of (x^2 +4x +3)^(x^2 -6x+8) = 1

Rewrite as a^b = 1, where a = x^2+4x+3 and b = x^2-6x+8List the cases for which a^b = 1Case 1: a = 1:So x^2+4x+3=1 => x^2+4x+2=0 => x=-2 +/- sqrt(2)Case 2: b=0, a ≠ 0:b=(x-4)(x-2) => x = 2, x=4Ch...

Answered by Nicholas M. PAT tutor
1039 Views

A function is defined piecewise f(x) = ( e^x for x<0, e^(-x) + 2x for x>= 0). Sketch f(x) and its first, second and third derivatives

f(x) = ( e^x for x<0, e^(-x) + 2x for x>= 0)f'(x) = ( e^x for x<0, -e^(-x) + 2 for x>= 0)f''(x) = ( e^x for x<0, e^(-x) for x>= 0)f'''(x) = ( e^x for x<0, -e^(-x) for x>= 0)(Will s...

Answered by Nicholas M. PAT tutor
1124 Views

Estimate the radius of the moon based on a solar eclipse given the distances between the earth and the moon, the earth and the sun, and the radius of the sun.

A diagram showing the moon directly between the earth and the sun is key here. If we call the radii of the sun and the moon rs and rm and the distances from earth Ds and...

Answered by Alastair M. PAT tutor
1577 Views

Five point charges, each of positive charge q, are arranged to form the corners of a uniform pentagon. A point charge Q is placed at the pentagon's centre. One of the corner charges is removed. What force does the centre charge experience?

There are four keys to answering this problem - when taken together, they turn a seemingly difficult calculation into a trivial one-line answer. The first is knowing Coulomb's inverse square law for the f...

Answered by Theo A. PAT tutor
2175 Views

Question below as would not fit in here

A parachutist jumps out of a plane at height h. She is subject to air resis- tance with a force of −αv2. The equation of her motion is given bymdv/dt =mg−αv^2 What are the units of α?Calculate the termina...

Answered by Matthew S. PAT tutor
3312 Views

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