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A2 Trigonometry. Help!!

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    Name:  20161003_132650-1.jpg
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Size:  233.8 KB q. Prove the identity.

    Somebody please do it.
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    (Original post by Insia786)
    Name:  20161003_132650-1.jpg
Views: 21
Size:  233.8 KB q. Prove the identity.

    Somebody please do it.
    Please post the image the right way round
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    The identity is
    sin2theta + sin 3theta / cos2theta - cos3theta = cot theta/2

    Prove the LHS is equal to RHS
 
 
 
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