Maths-
General
Easy

Question

f alpha plus beta equals pi divided by 2 and beta plus gamma equals alpha comma then tan invisible function application alpha blank e q u a l s

  1. 2 left parenthesis tan invisible function application beta plus tan invisible function application gamma right parenthesis  
  2. tan invisible function application beta plus tan invisible function application gamma  
  3. tan invisible function application beta plus 2   tan invisible function application gamma  
  4. 2 tan invisible function application beta plus tan invisible function application gamma  

The correct answer is: tan invisible function application beta plus 2   tan invisible function application gamma


    alpha plus beta equals fraction numerator pi over denominator 2 end fraction rightwards double arrow alpha equals fraction numerator pi over denominator 2 end fraction minus beta rightwards double arrow tan invisible function application alpha equals cot invisible function application beta blank rightwards double arrow tan invisible function application alpha tan invisible function application beta equals 1 blank left parenthesis i right parenthesis
    Again, beta plus gamma equals alpha rightwards double arrow gamma equals alpha minus beta
    rightwards double arrow tan invisible function application gamma equals fraction numerator tan invisible function application alpha minus tan invisible function application beta over denominator 1 plus tan invisible function application alpha tan invisible function application beta end fraction equals fraction numerator tan invisible function application alpha minus tan invisible function application beta over denominator 2 end fraction [using Eq. (i)]
    rightwards double arrow tan invisible function application alpha equals tan invisible function application beta plus 2 tan invisible function application gamma

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