find the value of cos(45/2)
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sin (55/2) it is answer
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hello,
here's your answer:
cos (2A) = ((2*(cosA)^2))-1
cos A= sqrt((1+cos2A)/2)
cos(45/2)= sqrt((1+cos45)/2)=0.92387953
i hope it helped u !!☺☺
here's your answer:
cos (2A) = ((2*(cosA)^2))-1
cos A= sqrt((1+cos2A)/2)
cos(45/2)= sqrt((1+cos45)/2)=0.92387953
i hope it helped u !!☺☺
Anonymous:
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