5 cos²60°+4 sec²30°-tan²45°÷sin²30°+cos²30°
anushka12122007:
evaluate the following.
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· ( 5 cos²60°+4 sec²30°- tan²45°) ÷ (sin²30° +cos²30°) = {5*(1/2)^ 2+ 4 (√3/2)^2-(1)^2} ÷{ (1/2)^2+(√3/2) ^2} ={ 5/4+4*(3/4)-1}
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