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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