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1. |
Find ( frac{d^2 y}{dx^2} ), if y=2 sin-1 (cos x). |
A. | 0 |
B. | sin<sup>-1</sup> (( frac{1}{cos u2061x}) ) |
C. | 1 |
D. | -1 |
Answer» B. sin<sup>-1</sup> (( frac{1}{cos u2061x}) ) | |