if , & are in AP., 2 = hint cot = cot ---------- 2please help out with this problem

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if , & are in AP., 2 = hint cot = cot ---------- 2>please help out with this problem

Nishant Vora · Answer

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if , & are in AP., 2 = hint cot = cot ---------- 2>please help out with this problem

if $\alpha$ , $\beta$ & $\delta$ are in AP., 2 $\beta$ = $\alpha +\delta$
hint cot $\beta$ = cot $\alpha +\delta$
----------
2>please help out with this problem

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if , & are in AP., 2 = hint cot = cot ---------- 2>please help out with this problem

if , & are in AP., 2= hint cot = cot ---------- 2>please help out with this problem

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if $\alpha$ , $\beta$ & $\delta$ are in AP., 2 $\beta$ = $\alpha +\delta$
hint cot $\beta$ = cot $\alpha +\delta$
----------
2>please help out with this problem