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How do I find Sin A = .42 is < A is an acute angle. And how do i enter that on a calculator

 May 1, 2016
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We need to use the sine inverse   [ may be designated as arcsin  on your calculator or sin-1 ]

 

So we have :

 

arcsin (.42)  =  A  = about 24.83°

 

P.S.  -  make sure that your calculator is in degree mode  !!!!!

 

 

 

cool cool cool

 May 1, 2016

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