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  4. The value of the expression (1-4 sin 10° sin 70°/2 sin 10°) is

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Q. The value of the expression $\frac{1-4 \sin 10^{\circ} \sin 70^{\circ}}{2 \sin 10^{\circ}}$ is

Trigonometric Functions

Solution:

Correct answer is (a) 1