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Trigonometry

Asked by 16th September 2009, 1:25 PM
Answered by Expert
Answer:

(sin63/cos63)-(cos63/sin63)

=-(cos 63*cos63-sin63*sin63)/sin63cos63

=-2cos126/sin126

=-2cot126

the double angle formulae have been used here.

Answered by Expert 6th October 2009, 8:55 AM
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