Blake C.

asked • 10/26/16

Trig question

My math is online and the helper says that sin∅= y/r= (5√74)/74 = 144.5° . how do u convert that fraction into degrees. 
I did try the inverse of ∅=sin-1(y/r) , but for my example that only comes out to 35.53767779

Ismael A.

Your equation is wrong. The value of the sine of an angle is a number between -1 and 1 inclusive and if you take the arcsin of (5√74)/74 you get a different angle (not 144.5o)
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10/26/16

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