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Show that (Sin 3A) / (sin A) - (cos 3A)/...

Show that `(Sin 3A) / (sin A) - (cos 3A)/ (cos A) = 2`

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Show that (sin3A)/(sin A)-(cos3A)/(cos A)=2

(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=

(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=

Simplify: (sin3A)/(sin A)+(cos3A)/(cos A)

(sin^(2)3A)/(sin^2A)-(cos^(2)3A)/(cos^2A)=

If A = 30^(@) , show that : (i) (1 + sin 2A + cos 2A)/(sin A + cos A) = 2 cos A (ii) (cos^(3)A - cos 3A)/(cos A) + (sin^(3)A + sin 3A)/(sin A) = 3

(sin ^2 3A )/( sin ^2 A ) -( cos^2 3A )/(cos ^2 A ) is

(sin3A + sin A) sin A + (cos3A-cos A) cos A = 0

(sin^(2)3A)/(sin^(2)A)-(cos^(2) 3A)/(cos^(2)A)=

( sin 3A + sin A) sin A + ( cos 3A- cos A ) cos A =