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Need questions 11-13 done pls

Need questions 11-13 done pls-example-1
User Kgibbon
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1 Answer

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11)Sin45=(1)/(√(2) ) \\12)Tan60=√(3) } \\13)Cos30=(√(3) )/(2)

Hope it will help you.

Explanation:

User TimSPQR
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