Homework Help: Math

Posted by House on Thursday, October 2, 2008 at 9:30pm.

Use the law of cosines to solve ABC with A=126.3, b=45, and c=62.5

I did all the work to find a but my problem is finding B

a=96.2

Sin(B)=45sin126.3/96.2
B=Sin^-1(45sin126.3/96.2)
It's not going through in my calculator

Math - bobpursley, Thursday, October 2, 2008 at 9:35pm
I would use the law of sines to find angle B.

SineB/b=SinA/a
Math - House, Thursday, October 2, 2008 at 9:42pm
Sin(B)/45=126.3/96.2

im stuck there
Math - House, Thursday, October 2, 2008 at 9:54pm
B=1.03 and C=52.67

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