hello i want to make a sinusoidal graph please help

hello i want to make a sinusoidal graph, with a title “Sinusoidal Graph”. The equation for the sinusoidal graph is and this must be plotted

from -pi/2 to pi/2: X = 6cos(2π*20t) + 2sin(2π*10t)

so,

title('Sinusoidal Graph')

plot(-pi/2 to pi/2:1000)

X = 6cos(2π*20t) + 2sin(2π*10t)

is it like this please help

Answer 1

[Kevin Holly]

t=-pi/2:(pi/2)/1000:pi/2;
X = 6*cos(2*pi*20*t) + 2*sin(2*pi*10*t);
plot(t,X)
title('Sinusoidal Graph')

or

figure
t=linspace(-pi/2,pi/2,1000);
X = 6*cos(2*pi*20*t) + 2*sin(2*pi*10*t);
plot(t,X)
title('Sinusoidal Graph')