Verify the identity.(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos 2 x
What will be an ideal response?
(sin x)(tan x cos x + cot x cos x) = sin x = sin 2 x - cos 2 x
= 1 - 2 cos 2 x.
Mathematics
You might also like to view...
If AB ? BC, DC ? BC, and AB ? CD in the figure, prove that ?BAC ? ?CBD.
Mathematics
Solve the problem.If two sound sources at the same volume are equidistant from a microphone, the pressure on the microphone is given by p = a cos ?1t + a cos ?2twhere a, ?1, ?2 are constants and t is time. Write p as a product of cosine functions.
What will be an ideal response?
Mathematics
Determine if the number is divisible by 2, 3, 5, or none of these.54
A. 3 B. 2, 3 C. 2 D. None
Mathematics
Use the discriminant to determine whether the graph of the equation is a parabola, ellipse, or a hyperbola. :
What will be an ideal response?
Mathematics