[" 14.Prove that: "[(sin theta)/(1-cos t...

[" 14.Prove that: "[(sin theta)/(1-cos theta)]+[(tan theta)/(1+cos theta)]=sec theta)csc theta+cot theta],[(1)/(3)*" in rove that: "cos^(3)theta+sin^(3)theta+cos^(3)theta-sin^(3)theta=8]

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