in trangle ABC angle C=90 degrees, AB=c ,BC= a, AC=b and b2=acthen cos B=1)1/22)root5 -1/23)root5-1/44)1/4 full length solution plss
in trangle ABC angle C=90 degrees,
AB=c ,BC= a, AC=b and b2=ac
then cos B=
1)1/2
2)root5 -1/2
3)root5-1/4
4)1/4
full length solution plss
noor , 9 Years ago
Grade 11
