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=30°,则 等于 ( ) A.60°B.60°或120° 30°或150° 120°
B.C.所对的边为a,b,c,若a=1,b=, =120°,则A.等于( ) A.30°B.45° 60° 120°
=if(A1>=85,“优良”,if(A1>=60,“及格”,if(A1<60,“不及格”))) =if(A1>=85,“优良”,85>A1>=60,“及格”,A1<60,“不及格”) =if(A1>=85,“优良”),if(A1>=60,“及格”),if(A1<60,“不及格”) =if(A1>=85,“优良”,if(A1>=60,“及格”,“不及格”))
MAX(A1:A5) 等于 10 MAX(A1:A5,30) 等于 30 MAX(A1:A5,30) 等于 27 MAX(A1:A5,25) 等于 25
=30°,则 等于( ) A. 60° B. 60°或120° 30° 30°或150°
=30°,则 等于 ( ) A.60°B.60°或120° 30°或150° 120°
等于( ) A. 120° 60° 45° 30°
30° 150° 30°或150° 60°或120°
45° 120° 45°或135° 45°或120°
=if(A1>=85,“优良”,if(A1>=60,“及格”,if(A1<60,“不及格”))) =if(A1>=85,“优良”,85>A1>=60,“及格”,A1<60,“不及格”) =if(A1>=85,“优良”),if(A1>=60,“及格”),if(A1<60,“不及格”) =if(A1>=85,“优良”,if(A1>=60,“及格”,“不及格”))