sin60°+ cos60°·tan45°+1/2√(1-2tan30°) +tan²30°= √3/2 + 1/2 * 1 +1/2 *√(1-2√3/3) + (√3/3)²= √3/2 + 1/2 +1/2 *√[√3-1)²/3] + 1/3= √3/2 + 1/2 +1/2 - √3/6 + 1/3= (4 + √3)/3...