what is the value of sin²(α)+sin²(β)+sin²(γ)? why? ?

Update:

[This question is in regards to the topic of vectors, alpha, beta, and gamma referring to the direction vectors ] 

Update 2:

* direction angles 

2 Answers

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  • Anonymous
    1 month ago

    It was 0 but I don't remember.               

    Why because you were solving by every sine.    

    Sin^2(a) =  Sin^2(180-b-g)

    And then you can use the identities. 

    https://www.purplemath.com/modules/idents.htm

    It should give you 0 but I don't remember. Try to solve it. 

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  • 1 month ago

    What do you mean why?

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