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sin3A+sin2A-sin A=4sin A cos A cos3A...

sin3A+sin2A-sin A=4sin A cos A cos3A

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Prove that: \ sin3A+sin2A-sin A=4sin A cos (A/2)cos((3A)/2)

sin3A+sin2A-sin A=4sin A*cos((A)/(2))*cos((3A)/(2))

Show that sin 3 A + sin 2A -sin A = 4 sin A cos (A)/(2) cos "" (3A)/( 2)

( sin 4 A sin 3A - sin 5A sin 2A+ sin 7A sin 4A )/(cos 2A cos 3A - cos 2A * cos 7A + cos A * cos 10A )=

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

sin 3x + sin 2x - sin = 4sin x cos "" x/2 cos "" (3x)/(2)