find the value of cos o f twenty two and half degree

Plz tell me the method. My answer is not matching.
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1 Answer

me pull out the "sientifik" kalkulater...it hav trig funks

kosine(22.5 deg)=0.923879532

or yu kooo look on internet for kalkulater on www

theerz zilyuns av kalkulaters on the web

BEWARE...web kalkulaters yuze porgramming lingos, & em alwaes yuze RADIANS

yu gotta konvert degrees tu radians
by

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