cos45 /(sec30 +cosec60)

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1 Answer

kosine(45 deg)=0.70710681  or root(2)/2

sekant=1/kosine (30 deg)=1/0.866025403=1.154700538

kosekant=1/sine(60 deg)=1/0.866025403=1.154700538

sekant +kosekant=2*1.1547...=2.309401077

kosine/(sekant+kosekant)=0.70710681/2.309401077

=0.30618623
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