0.3 е) At which angle must the two forces (x + y) and (x - y) act so that the resultant may be : √(x² + y²) ABER -1 (a) cos -6- x² + y² 2(x2 - y2) (b) COS 1-2 (x² - y2)) x² + y² x² + y2 x2 - y2 (C) COS x² - y² x² + y² (d) COS
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