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If xcosA - ysinA = 1 and xsinA + ycosA = 4, then the value of `17x^2+17y^2` is:
यदि xcosA - ysinA = 1 तथा xsinA + ycosA = 4 है, तो `17x^2+17y^2` का मान क्या होगा ?

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49

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7

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289

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