Produs trigonometric

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opincariumihai
Thales
Posts: 134
Joined: Sat May 09, 2009 7:45 pm
Location: BRAD

Produs trigonometric

Post by opincariumihai »

Sa se calculeze \( \prod[1+(-1)^k\cdot2sin\frac(\frac {1}{3^k})] \)
Mihai Opincariu
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