Sunday

April 20, 2014

April 20, 2014

Posted by **john peaterson** on Thursday, April 1, 2010 at 6:38pm.

5+sinx-3cosx and state the value of x for which this maximum occurs

- MATHS>>>PLEASE HELP -
**Damon**, Thursday, April 1, 2010 at 7:20pmy = 5 + sin x - 3 cos x

dy/dx = 0 at min or max = cos x + 3 sin x

cos x = - 3 sin x

tan x = -1/3

x = -18.4 deg

that is in quadrants 2 and 4

x = 161.6 and 341.6 degrees

at 161.6

5 + sin x -3 cos x =5.27

at 341.6

5 + sin x -3 cos x = 4.64

looks like at 161.6 degrees for max

**Related Questions**

Algebra 2 -Linear Programming - Find the values of x and y that maximize or ...

maths - #1 x + 2y < 18 x + y < 10 2x + y < 18 x, y > 0 Maximize z = ...

Math - The question is: Fr what value(s) of k will the function f(x)=(kx^2)-4x+k...

Geometry - Given circle A with circumference 20 pi and the length of arc KD ...

Logic - Can someone please help me solve these problems? I have to use the 17 ...

math - I'm having some troubles with these. Thanks in advance. If a>0 find ...

Business Statistics - A chi-square test for independence with 8 degrees of ...

math - What is the maximum value of [z = 8x + 7y] , subject to the conditions {...

Physics - Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius of 3....

Math Polynominal - The following three sets A,B and C satisfy A ⊂ B and C...