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Principle Of Mathematical Induction

Question

If tan (A + B) = m and tan (A - B) = n, show that

$tan space 2 straight A space equals space fraction numerator straight m plus straight n over denominator 1 minus mn end fraction$

Solution

Solution not provided.
(Hint: $space space space space tan space 2 straight A space equals space tan open curly brackets left parenthesis straight A plus straight B right parenthesis space plus space left parenthesis straight A minus straight B right parenthesis close curly brackets$

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Principle Of Mathematical Induction

If tan (A + B) = m and tan (A - B) = n, show that

$tan space 2 straight A space equals space fraction numerator straight m plus straight n over denominator 1 minus mn end fraction$

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Find 1 radian angle in degrees, minutes, seconds.

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