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suppose sin(a)+cos(b)=-0.2 while sin(b)+cos(a)=1.6 

What is the value ofsin (a+b)

 
 Oct 10, 2021
 #1
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This is a repost of this one

https://web2.0calc.com/questions/suppose-sin-a-cos-b-0-2-while-sin-b-cos-a-1-6

 

Next time please present it as such.

Reposts, that are presented properly are more likely to be answered than new questions from guests are.

So it is in your interest to do it properly.

 

I would also like to see someone answer this one.     frown

 
 Oct 11, 2021

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