[" 11.यदि "sec A=(5)/(4)" ,तो Show that ...

[" 11.यदि "sec A=(5)/(4)" ,तो Show that "],[qquad (3sin A-4sin^(3)A)/(4cos^(3)A-3cos A)=(3tan A-tan^(3)A)/(1-3tan^(2)A)]

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If sec A=(5)/(4), verify that (3sin A-4sin^(3)A)/(4cos^(3)A-3cos A)=(3tan A-tan^(3)A)/(1-3tan^(2)A)

If secA=5/4 , verify that (3sinA-4sin^3A)/(4cos^3A-3cosA)=(3tanA-tan^3A)/(1-3tan^2A)

If sec A=(17)/(8), verify that (3-4sin^(2)A)/(4cos^(2)A-3)=(3-tan^(2)A)/(1-3tan^(2)A)

If secA=(17)/8 , verify that (3-4sin^2A)/(4cos^2A-3)=(3-tan^2A)/(1-3tan^2A)

Prove that: (sin5A-sin3A)/(cos5A+cos3A)=tan A(sin A+sin3A)/(cos A+cos3A)=tan2A

(sin 5x + sin 3x)/(cos 5x + cos 3x) = tan 4x

sin(sin^(-1)((1)/(3))+sec^(-1)(3))+cos(tan^(-1)(1/2)+tan^(-1)2) =

Prove that (sin 5x+sin3x)/(cos 5x+cos3x)=tan4x