trigonometry

Question: $\frac{\sin 70{}^\circ +\cos 40{}^\circ }{\cos 70{}^\circ +\sin 40{}^\circ }=$



1) 1
2) $\frac{1}{\sqrt{3}}$
3) $\sqrt{3}$
4) $\frac{1}{2}$
Solution: Explanation: No Solution
Trigonometric ratios of sum and difference of two and three

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