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If angle A is between 0 and 90 degree then the value of ½ cot A [1-(sec A – tan A) 2 / cosec A(sec A – tan A)] is Options are a) 2 b)0 c) 1 d)1/2

If  angle A is between 0 and 90 degree then the value of 
½  cot A  [1-(sec A – tan A)/ cosec A(sec A – tan A)]  is
Options are
a) 2                           b)0           c)  1                             d)1/2

Grade:12th pass

1 Answers

PASUPULETI GURU MAHESH
126 Points
5 years ago
THE ANSWER IS D  SINCE  IF A=300
THEN½  cot A  [1-(sec A – tan A)/ cosec A(sec A – tan A)]
=1/2(root 3)[1-((2/root3)-(1/root3))2] / (2(2/root3)-(1/root3))
simplify that you get 1/2

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