Homework Help with trig ident

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To find the value of cos(arcsin u + arccos v), the expression can be simplified using the cosine addition formula: cos(A+B) = cosAcosB - sinAsinB. The identities cos(arcsin x) = √(1-x²) and sin(arccos x) = √(1-x²) are also applicable. Clarification on the values of u and v is necessary for a complete solution. The discussion emphasizes the importance of providing full context in homework questions.
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Homework Statement


Find the value of cos(arcsin u + arccos v)?


Homework Equations





The Attempt at a Solution


 
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You're going to have to be a little more specific, what are u and v? Are you looking to simplify this expression? As well, when you preview a post it adds the template to your post again, so remember to delete it.
 
JoshB645 said:

Homework Statement


Find the value of cos(arcsin u + arccos v)?

i suppsoe it should be a full stop instead question mark,
btw Welcome Joshua to PF:smile:

I think you have not written the whole question.
 
Last edited:
Hello! Use cos(A+B)=cosAcosB-sinAsinB

Then, use:
cos[arcsin(x)]=√1-x2
sin[arccos(x)]=√1-x2
 

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