Math, asked by tina9426, 1 year ago

If 2 cos theta minus sin theta is equal to x and cos theta - 3 sin theta is equal to y prove that 2 x square + y square - 2 x y is equal to 5

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Answered by ksharan011
158
here's your solution i hope it will help you.
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Answered by kadianharsh9
54

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