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\frac{\tan 60^{\circ}-\tan 30^{\circ}}{1+\tan 60^{\circ} \tan 30^{\circ}}+\cos 60^{\circ} \cos 30^{\circ}+\sin 60^{\circ} \sin 30^{\circ} |
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Answer» tan60=√3tan30=1/√3cos60=1/2cos30=√3/2sin60=√3/2sin30=1/2put in the values√3-1/√3/1+√3*1/√3+1/2*√3/2+√3/2*1/23-1/2√3+√3/4+√3/41/√3+√3/4+√3/41/√3+2√3/44+6/4√310/4√310√3/125√3/6 rong |
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