defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Trigonometry Trigonometric Identities
sin \(\frac{\pi}{14}\) .sin \(\frac{3\pi}{14}\) .sin \(\frac{5\pi}{14}\) .sin \(\frac{7\pi}{14}\) .sin \(\frac{9\pi}{14}\) .sin \(\frac{11\pi}{14}\) .sin \(\frac{13\pi}{14}\) का मान किसके बराबर है?
1
1
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1/16
3
1/64
4
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