
Grade 11Trigonometry
X=Cos1°.cos2°cos3°... Cos89°And Y=cos2°.cos6°.cos10°... Cos86°And given that 2a=(X/Y) 2/7 then find the value of a?
X=Cos1°.cos2°cos3°... Cos89°
And Y=cos2°.cos6°.cos10°... Cos86°
And given that 2a=(X/Y) 2/7 then find the value of a?





