show that {1 +2costheta) is a factor of(theta)=8cos^3theta-4costheta-1.if 0 =36 degrees is a solution of...
show that {1 +2costheta) is a factor of(theta)=8cos^3theta-4costheta-1.if 0 =36 degrees is a solution of...
show that {1 +2costheta) is a factor of(theta)=8cos^3theta-4costheta-1.if 0 =36 degrees is a solution of f(theta)=0.deduce that cos 36 degrees=1/4(5^1/2 +1)?
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Asked by Ifeanyi ogidi on 3rd September, 2020
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