JEE MAIN - Mathematics Hindi (2023 - 31st January Evening Shift - No. 8)
समिश संख्या $$z=\frac{i-1}{\cos \frac{\pi}{3}+i \sin \frac{\pi}{3}}$$ बराबर है :
$$\cos {\pi \over {12}} - i\sin {\pi \over {12}}$$
$$\sqrt 2 \left( {\cos {\pi \over {12}} + i\sin {\pi \over {12}}} \right)$$
$$\sqrt 2 i\left( {\cos {{5\pi } \over {12}} - i\sin {{5\pi } \over {12}}} \right)$$
$$\sqrt 2 \left( {\cos {{5\pi } \over {12}} + i\sin {{5\pi } \over {12}}} \right)$$
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