what is the relationship between x and y

if

and

[Ans: x^2 + y^2 = 10]

Solution:

this is my approach

i use reverse engineering to get the correct answer (which is unacceptable):

and this is what i get

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- Dec 23rd 2011, 02:47 AMTechnicianEngineerTrig problem ( i think)
what is the relationship between x and y

if

and

[Ans: x^2 + y^2 = 10]

Solution:

this is my approach

i use reverse engineering to get the correct answer (which is unacceptable):

and this is what i get

- Dec 23rd 2011, 03:01 AMAlso sprach ZarathustraRe: Trig problem ( i think)