dy/dx = 0 at max or min
0= -7 sin x + 24 cos x
7 sin x = 24 cos x
tan x = 24/7
x = 73.7 degrees
is that a max or a min?
d^2y/dx^2 = -7 cos x -24 sin x
that is negative so it is a maximum
Maths - trig - Solve 3cos2x - 7cosx = 0, when 0<=x<=360 And also, find the...
trig - Graph three periods of the function. (identify period and phase shift and...
Math 30 Trig - How do I find the x-intercept of the graph of y=3sin 2x? Could ...
trig/precalc - a car's flywheel has a timing mark on it's outer edge. the height...
trig - how to graph thr trig function f(x)3x-180)+2 and the parent function?
Calculus - Given f'(x)=7cosx–11sinx and f(0)=1, find f(x)= ____?
Calculus(derivatives) - f(x)=7cosx+6tanx, find f'(x)and f'(5pie/4)
Functions, math - 7cosx+35=13+3cosx+24
calculus - 7cosx+5sinx=2k+1 6 35 3 14
trig - This identity means that translating a basic sine graph 3π/2 units ...