1.

If Sin(y)=Sin(-1) (y) the?

A. (1-y<sup>2</sup> )(1 – Cos<sup>2</sup> y) = 1
B. (1-y<sup>2</sup> )(1 – Sin<sup>2</sup> y) = 1
C. (1-y<sup>2</sup> )(1 – Siny)=1
D. (1-y<sup>2</sup> )(1 – Cosy)=1
Answer» C. (1-y<sup>2</sup> )(1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® Siny)=1


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