TRIGONOMETRY

Asked by sonali221994 | 17th Dec, 2009, 07:50: PM

Expert Answer:

sin A + cos A =2 cos ( 90-A)

sin A + cos A =2 sin A  (using cos (90-A) = sin A)

cos A = (2 -1)sin A

cot A = (2 -1)

Answered by  | 18th Dec, 2009, 12:20: PM

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