https://uadoc.uacdn.net/doubts/MDJ66FHIDE/1635595414TARNQQ02.JPEG

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xsino + ycoso = 4 and xsino - ycoso = 2, then which one of the following is
correct?
xsino + ycoso = 4 31 xsino - ycoso = 2, at Adolfcred oplo H HÄT
???
(a) x2 + y2 = 20
(b) x2 - y2 = 16
(c)2 + = 1
(d) + == 1
:
9
---
27
y2
1
+


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