62.The value of sin1.cos2.tan3.cot4.sec5.cosec6 is A)Positive B)Negative C)Zero

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sin 1. cos 2. tan 3. cot 4. sec 5. cosec 6

\frac{sin 1^{\circ} + sin 3^{\circ} + sin 5^{\circ} + sin 7^{\circ}}{cos 1^{\circ} cos 2^{\circ} sin 4^{\circ}}

x = sin 1^{\circ}

\frac{1}{cos 0^{\circ} . cos 1^{\circ}} + \frac{1}{cos 1^{\circ} . cos 2^{\circ}} + \frac{1}{cos 2^{\circ} . cos 3^{\circ}} + . . . . + \frac{1}{cos 44^{\circ} . cos 45^{\circ}}

\frac{t a n 5 θ + t a n 3 θ}{t a n 5 θ - t a n 3 θ} = 4 c o s 2 θ c o s 4 θ

\frac{2 (sin 1^{0} + sin 2^{0} + sin 3^{0} + . . . . . . . . + sin 89^{0})}{2 (cos 1^{0} + cos 2^{0} + . . . . . . . + cos 44^{0}) + 1}

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