1.

IF_Z_=_SIN-1_(X‚ÄÖ√Ñ√∂‚ÀÖ√Ñ‚ÀÖ√´Y)_+_TAN-1_(Y‚ÄÖ√Ñ√∂‚ÀÖ√Ñ‚ÀÖ√´X)_THEN_X_‚ÄÖ√Ñ√∂‚ÀւĆ‚ÀÖ√°Z‚ÄÖ√Ñ√∂‚ÀÖ√Ñ‚ÀÖ√´‚ÄÖ√Ñ√∂‚ÀւĆ‚ÀÖ√°X_+_Y_‚ÄÖ√Ñ√∂‚ÀւĆ‚ÀÖ√°Z‚ÄÖ√Ñ√∂‚ÀÖ√Ñ‚ÀÖ√´‚ÄÖ√Ñ√∂‚ÀւĆ‚ÀÖ√°Y_IS?$#

A. 0
B. y
C. 1 + <sup>x</sup>‚ÅÑ<sub>y</sub> Sin<sup>-1</sup> (<sup>x</sup>‚ÅÑ<sub>y</sub>)
D. 1 + <sup>y</sup>‚ÅÑ<sub>x</sub> Tan<sup>-1</sup> (<sup>y</sup>‚ÅÑ<sub>x</sub>)
Answer» B. y


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