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- SOLUTION: Given that X is an acute angle and COS X = (2√5)/5, find tan (90-x)Given that X is an acute angle and COS X = (2√5)/5, find tan (90-x)
SOLUTION: Given that X is an acute angle and COS X = (2√5)/5, find tan (90-x)Given that X is an acute angle and COS X = (2√5)/5, find tan (90-x)
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