SSC CGL 3 Mar 2020 Shift 1 Paper

Question : 68 of 76

Marks: +1, -0

{\x}=4 \cos {\A}+5 sin \; {\A}

and

{\y}=4 sin \; {\A}-5 \cos {\A}

, then the value of

{\x}^2+ {\y}^2

is:

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